Update versions and docs for new templates

I had set version=3.26 for new and revised templates, but we didn't
get the big changes in 3.26. So set them to 3.28.

8 files changed, 85 insertions, 85 deletions

diff --git a/xslt/common/color.xsl b/xslt/common/color.xsl
index 3181a173..197c96de 100644
--- a/xslt/common/color.xsl
+++ b/xslt/common/color.xsl
@@ -22,7 +22,7 @@ along with this program; see the file COPYING.LGPL.  If not, see <http://www.gnu
 <!--!!==========================================================================
 Colors
 Common named colors and color utilities for output styling.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This stylesheet provides a common interface to specify custom colors for
 transformations to presentation-oreinted formats.  This allows similar
@@ -36,7 +36,7 @@ and extracting information about colors.
 <!--**==========================================================================
 color.hex2dec
 Convert a hexidecimal number to decimal.
-:Revision: version="3.26" date="2016-01-03" status="final"
+:Revision: version="3.28" date="2016-01-03" status="final"
 $hex: The hexidecimal number to convert to decimal.
 
 This template converts a hexidecimal number to decimal. It's useful for getting
@@ -75,7 +75,7 @@ the numeric values of color components in a hexidecimal color code.
 <!--**==========================================================================
 color.r
 Extract the red component of a color.
-:Revision: version="3.26" date="2016-01-03" status="final"
+:Revision: version="3.28" date="2016-01-03" status="final"
 $color: A color specified in hexidecimal, #{rgb()}, or #{rgba()}.
 
 This template extracts the red portion of a color, returning a number between
@@ -106,7 +106,7 @@ not accept HSL or named HTML colors.
 <!--**==========================================================================
 color.g
 Extract the green component of a color.
-:Revision: version="3.26" date="2016-01-03" status="final"
+:Revision: version="3.28" date="2016-01-03" status="final"
 $color: A color specified in hexidecimal, #{rgb()}, or #{rgba()}.
 
 This template extracts the green portion of a color, returning a number between
@@ -137,7 +137,7 @@ not accept HSL or named HTML colors.
 <!--**==========================================================================
 color.b
 Extract the blue component of a color.
-:Revision: version="3.26" date="2016-01-03" status="final"
+:Revision: version="3.28" date="2016-01-03" status="final"
 $color: A color specified in hexidecimal, #{rgb()}, or #{rgba()}.
 
 This template extracts the blue portion of a color, returning a number between
@@ -175,7 +175,7 @@ not accept HSL or named HTML colors.
 <!--**==========================================================================
 color.a
 Extract the alpha value of a color.
-:Revision: version="3.26" date="2016-01-03" status="final"
+:Revision: version="3.28" date="2016-01-03" status="final"
 $color: A color specified in hexidecimal, #{rgb()}, or #{rgba()}.
 
 This template extracts the alpha, or opacity level, of a color. It returns a
@@ -201,7 +201,7 @@ with anything other than #{rgba()}, it always returns 1.0.
 <!--**==========================================================================
 color.rl
 Get the relative luminance of a color.
-:Revision: version="3.26" date="2016-01-03" status="final"
+:Revision: version="3.28" date="2016-01-03" status="final"
 $color: A color specified in hexidecimal, #{rgb()}, or #{rgba()}.
 
 This template calculates the relative luminance of a color, returning a number
@@ -271,7 +271,7 @@ HSL or named HTML colors.
 <!--**==========================================================================
 color.contrast
 Get the contrast between two colors.
-:Revision: version="3.26" date="2016-01-03" status="final"
+:Revision: version="3.28" date="2016-01-03" status="final"
 $bg: A color specified in hexidecimal, #{rgb()}, or #{rgba()}.
 $fg: A color specified in hexidecimal, #{rgb()}, or #{rgba()}.
 
@@ -317,7 +317,7 @@ ratio of at least 3.0 for large-scale text.
 <!--**==========================================================================
 color.blend
 Blend two colors together at a specified mix level.
-:Revision: version="3.26" date="2016-01-03" status="final"
+:Revision: version="3.28" date="2016-01-03" status="final"
 $bg: A color specified in hexidecimal, #{rgb()}, or #{rgba()}.
 $fg: A color specified in hexidecimal, #{rgb()}, or #{rgba()}.
 $mix: The mix level, between 0.0 and 1.0.
@@ -537,7 +537,7 @@ the #{rgb()} scheme. Otherwise, it uses the #{rgba()} scheme.
 <!--@@==========================================================================
 color.fg
 The primary text color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameters specifies the normal color of text. It should have a high color
 contrast against @{color.bg}. Other text colors can be automatically computed
@@ -549,7 +549,7 @@ based on this color.
 <!--@@==========================================================================
 color.bg
 The normal background color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameters specifies the background color. It should have a high color
 contrast against @{color.fg}. Other background colors can be automatically
@@ -561,7 +561,7 @@ computed based on this color.
 <!--@@==========================================================================
 color.red
 A red accent color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of red that is suitable for borders and
 other accents. It should have some contrast against background colors, but it
@@ -573,7 +573,7 @@ does not need as high of a contrast as text colors.
 <!--@@==========================================================================
 color.fg.red
 A red text color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of red that is suitable for text. It should
 have a high color contrast against @{color.bg}. If not specified, it can be
@@ -589,7 +589,7 @@ automatically computed based on @{color.red} and @{color.fg}.
 <!--@@==========================================================================
 color.bg.red
 A red background color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of red that is suitable for backgrounds.
 It should have a high color contrast against @{color.fg}. If not specified,
@@ -605,7 +605,7 @@ it can be automatically computed based on @{color.red} and @{color.bg}.
 <!--@@==========================================================================
 color.orange
 An orange accent color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of orange that is suitable for borders and
 other accents. It should have some contrast against background colors, but it
@@ -617,7 +617,7 @@ does not need as high of a contrast as text colors.
 <!--@@==========================================================================
 color.fg.orange
 An orange text color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of orange that is suitable for text. It should
 have a high color contrast against @{color.bg}. If not specified, it can be
@@ -633,7 +633,7 @@ automatically computed based on @{color.orange} and @{color.fg}.
 <!--@@==========================================================================
 color.bg.orange
 An orange background color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of orange that is suitable for backgrounds.
 It should have a high color contrast against @{color.fg}. If not specified,
@@ -649,7 +649,7 @@ it can be automatically computed based on @{color.orange} and @{color.bg}.
 <!--@@==========================================================================
 color.yellow
 A yellow accent color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of yellow that is suitable for borders and
 other accents. It should have some contrast against background colors, but it
@@ -661,7 +661,7 @@ does not need as high of a contrast as text colors.
 <!--@@==========================================================================
 color.fg.yellow
 A yellow text color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of yellow that is suitable for text. It should
 have a high color contrast against @{color.bg}. If not specified, it can be
@@ -678,7 +678,7 @@ automatically computed based on @{color.yellow} and @{color.fg}.
 <!--@@==========================================================================
 color.bg.yellow
 A yellow background color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of yellow that is suitable for backgrounds.
 It should have a high color contrast against @{color.fg}. If not specified,
@@ -695,7 +695,7 @@ it can be automatically computed based on @{color.yellow} and @{color.bg}.
 <!--@@==========================================================================
 color.green
 A green accent color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of green that is suitable for borders and
 other accents. It should have some contrast against background colors, but it
@@ -707,7 +707,7 @@ does not need as high of a contrast as text colors.
 <!--@@==========================================================================
 color.fg.green
 A green text color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of green that is suitable for text. It should
 have a high color contrast against @{color.bg}. If not specified, it can be
@@ -723,7 +723,7 @@ automatically computed based on @{color.green} and @{color.fg}.
 <!--@@==========================================================================
 color.bg.green
 A green background color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of green that is suitable for backgrounds.
 It should have a high color contrast against @{color.fg}. If not specified,
@@ -739,7 +739,7 @@ it can be automatically computed based on @{color.green} and @{color.bg}.
 <!--@@==========================================================================
 color.blue
 A blue accent color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of blue that is suitable for borders and
 other accents. It should have some contrast against background colors, but it
@@ -751,7 +751,7 @@ does not need as high of a contrast as text colors.
 <!--@@==========================================================================
 color.fg.blue
 A blue text color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of blue that is suitable for text. It should
 have a high color contrast against @{color.bg}. If not specified, it can be
@@ -766,7 +766,7 @@ automatically computed based on @{color.blue} and @{color.fg}.
 <!--@@==========================================================================
 color.bg.blue
 A blue background color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of blue that is suitable for backgrounds.
 It should have a high color contrast against @{color.fg}. If not specified,
@@ -782,7 +782,7 @@ it can be automatically computed based on @{color.blue} and @{color.bg}.
 <!--@@==========================================================================
 color.purple
 A purple accent color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of purple that is suitable for borders and
 other accents. It should have some contrast against background colors, but it
@@ -794,7 +794,7 @@ does not need as high of a contrast as text colors.
 <!--@@==========================================================================
 color.fg.purple
 A purple text color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of purple that is suitable for text. It should
 have a high color contrast against @{color.bg}. If not specified, it can be
@@ -810,7 +810,7 @@ automatically computed based on @{color.purple} and @{color.fg}.
 <!--@@==========================================================================
 color.bg.purple
 A purple background color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of purple that is suitable for backgrounds.
 It should have a high color contrast against @{color.fg}. If not specified,
@@ -826,7 +826,7 @@ it can be automatically computed based on @{color.purple} and @{color.bg}.
 <!--@@==========================================================================
 color.gray
 A gray accent color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of gray that is suitable for borders and
 other accents. It should have some contrast against background colors, but it
@@ -838,7 +838,7 @@ does not need as high of a contrast as text colors.
 <!--@@==========================================================================
 color.fg.gray
 A gray text color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of gray that is suitable for text. It should
 have a high color contrast against @{color.bg}. If not specified, it can be
@@ -854,7 +854,7 @@ automatically computed based on @{color.gray} and @{color.fg}.
 <!--@@==========================================================================
 color.bg.gray
 A gray background color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of gray that is suitable for backgrounds.
 It should have a high color contrast against @{color.fg}. If not specified,
@@ -870,7 +870,7 @@ it can be automatically computed based on @{color.gray} and @{color.bg}.
 <!--@@==========================================================================
 color.fg.dark
 A dark gray text color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a dark shade of gray that is suitable for text. It
 should have a very high color contrast against @{color.bg}. It is typically
@@ -889,7 +889,7 @@ specified, it can be automatically computed based on @{color.gray} and
 <!--@@==========================================================================
 color.bg.dark
 A dark gray background color.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This parameter specifies a shade of gray that is suitable for backgrounds,
 and is darker than @{color.bg.gray}. It should have a high color contrast
diff --git a/xslt/common/html.xsl b/xslt/common/html.xsl
index a073b900..b59984aa 100644
--- a/xslt/common/html.xsl
+++ b/xslt/common/html.xsl
@@ -215,7 +215,7 @@ time by JavaScript.
 <!--@@==========================================================================
 html.output.prefix
 An optional path prefix for files output with *{html.output}.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This parameter allows you to specify an prefix to place before the output path
 used by *{html.output} when creating files. You can use this to override the
@@ -305,7 +305,7 @@ parent elements.
 <!--**==========================================================================
 html.page
 Create an HTML document.
-:Revision:version="3.26" date="2017-08-04" status="final"
+:Revision:version="3.28" date="2017-08-04" status="final"
 $node: The node to create HTML for.
 
 This template creates the actual HTML output for ${node}. It outputs top-level
@@ -427,7 +427,7 @@ implement this node to add attributes for styling, data, or other purposes.
 html.top.custom
 Stub to output HTML at the top of the page.
 :Stub: true
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 $node: The node a page is being created for.
 
 This template is a stub, called by *{html.page}. It is called before the
@@ -443,7 +443,7 @@ at the top of the page.
 html.bottom.custom
 Stub to output HTML at the bottom of the page.
 :Stub: true
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 $node: The node a page is being created for.
 
 This template is a stub, called by *{html.page}. It is called after the
@@ -459,7 +459,7 @@ at the bottom of the page.
 html.sidebar.custom
 Stub to output custom sidebar content.
 :Stub: true
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 $node: The node a page is being created for.
 
 This template is a stub, called by *{html.page}. It is called inside the #{main}
@@ -479,7 +479,7 @@ for that element to display it after the #{main} element.
 html.header.custom
 Stub to output custom header content.
 :Stub: true
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 $node: The node a page is being created for.
 
 This template is a stub, called by *{html.page}. It is called inside the
@@ -494,7 +494,7 @@ override this template to provide additional content above the main content.
 <!--%%==========================================================================
 html.header.mode
 Output the header content for an element.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This mode is called by *{html.page} to output the contents of the #{header}
 element above the main content. Importing stylesheets may implement this mode
@@ -508,7 +508,7 @@ for any element that will be passed to *{html.page}. If they do not, the
 html.footer.custom
 Stub to output custom footer content.
 :Stub: true
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 $node: The node a page is being created for.
 
 This template is a stub, called by *{html.page}. It is called inside the
@@ -523,7 +523,7 @@ override this template to provide additional content below the main content.
 <!--%%==========================================================================
 html.footer.mode
 Output the footer content for an element.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This mode is called by *{html.page} to output the contents of the #{footer}
 element below the main content. Importing stylesheets may implement this mode
@@ -549,7 +549,7 @@ content, and sections should be output in this mode.
 html.head.top.custom
 Stub to output custom content at the beginning of the HTML #{head} element.
 :Stub: true
-:Revision: version="3.26" date="2017-08-04" status="final"
+:Revision: version="3.28" date="2017-08-04" status="final"
 $node: The node a page is being created for.
 
 This template is a stub, called by *{html.page}. You can override this template
@@ -565,7 +565,7 @@ output files. This template is called before all other head content.
 html.head.custom
 Stub to output custom content at the end of the HTML #{head} element.
 :Stub: true
-:Revision: version="3.26" date="2017-08-04" status="final"
+:Revision: version="3.28" date="2017-08-04" status="final"
 $node: The node a page is being created for.
 
 This template is a stub, called by *{html.page}. You can override this template
@@ -581,7 +581,7 @@ This template is called after all other head content.
 html.linktrails.empty
 Stub to output something when no link trails are present.
 :Stub: true
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 $node: The source element a page is bring created for.
 
 This template is a stub. It is called by templates that output link trails when
@@ -598,7 +598,7 @@ trails would otherwise be present.
 html.linktrails.prefix
 Stub to output extra content before a link trail.
 :Stub: true
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 $node: A source-specific element providing information about the link trail.
 
 This template is a stub. It is called by templates that output link trails
@@ -659,7 +659,7 @@ values that do not conflict with those used in these stylesheets.
 <!--**==========================================================================
 html.content.pre
 Output content before the content of a page or section.
-:Revision: version="3.26" date="2016-06-21" status="final"
+:Revision: version="3.28" date="2016-06-21" status="final"
 $node: The node a page or section is being created for.
 $page: Whether the content is for a page.
 
@@ -686,7 +686,7 @@ called on a section within a page.
 html.content.pre.custom
 Stub to output content before the content of a page or section.
 :Stub: true
-:Revision: version="3.26" date="2016-06-21" status="final"
+:Revision: version="3.28" date="2016-06-21" status="final"
 $node: The node a page or section is being created for.
 $page: Whether the content is for a page.
 
@@ -705,7 +705,7 @@ Otherwise, it is being called on a section within a page.
 <!--%%==========================================================================
 html.content.pre.mode
 Output content before the content of a page or section.
-:Revision: version="3.26" date="2016-06-21" status="final"
+:Revision: version="3.28" date="2016-06-21" status="final"
 $page: Whether the content is for a page.
 
 This mode is applied by *{html.content.pre} after calling
@@ -723,7 +723,7 @@ within a page.
 <!--**==========================================================================
 html.content.post
 Output content after the content of a page or section, before subsections.
-:Revision: version="3.26" date="2016-06-21" status="final"
+:Revision: version="3.28" date="2016-06-21" status="final"
 $node: The node a page or section is being created for.
 $page: Whether the content is for a page.
 
@@ -750,7 +750,7 @@ is being called on a section within a page.
 html.content.post.custom
 Stub to output content after the content of a page or section, before subsections.
 :Stub: true
-:Revision: version="3.26" date="2016-06-21" status="final"
+:Revision: version="3.28" date="2016-06-21" status="final"
 $node: The node a page or section is being created for.
 $page: Whether the content is for a page.
 
@@ -770,7 +770,7 @@ a page.
 <!--%%==========================================================================
 html.content.post.mode
 Output content after the content of a page or section, before subsections.
-:Revision: version="3.26" date="2016-06-21" status="final"
+:Revision: version="3.28" date="2016-06-21" status="final"
 $page: Whether the content is for a page.
 
 This mode is applied by *{html.content.post} before calling
@@ -1959,7 +1959,7 @@ template to provide additional CSS that will be used by all HTML output.
 <!--**==========================================================================
 html.js
 Output all JavaScript for an HTML output page.
-:Revision:version="3.26" date="2017-07-05" status="final"
+:Revision:version="3.28" date="2017-07-05" status="final"
 $node: The node to create JavaScript for.
 
 This template creates the JavaScript for an HTML output page. It calls the
@@ -2011,7 +2011,7 @@ copy, override this template and provide the necessary files.
 <!--**==========================================================================
 html.js.script
 Output a JavaScript #{script} tag containing local content.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 $node: The node to create JavaScript for.
 
 This template is called by *{html.js} to output JavaScript content. It outputs
@@ -2033,7 +2033,7 @@ result of *{html.js.content} to that file.
 <!--**==========================================================================
 html.js.content
 Output JavaScript content for an HTML output page.
-:Revision:version="3.26" date="2017-07-05" status="final"
+:Revision:version="3.28" date="2017-07-05" status="final"
 $node: The node to create JavaScript for.
 
 This template is called by *{html.js.script} to output JavaScript content. It
@@ -2458,7 +2458,7 @@ document.addEventListener('DOMContentLoaded', function() {
 <!--**==========================================================================
 html.js.syntax
 Output #{script} elements for syntax highlighting.
-:Revision: version="3.26" date="2016-01-03" status="final"
+:Revision: version="3.28" date="2016-01-03" status="final"
 $node: The node to create JavaScript for.
 
 This template outputs HTML #{script} elements to enable syntax highlighting.
@@ -2618,7 +2618,7 @@ if ${dir} is non-empty.
 <!--**==========================================================================
 html.syntax.class
 Output HTML class values for syntax highlighting.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 $node: The source element whose content will be syntax highlighted.
 
 This template calls %{html.syntax.class.mode} on ${node}. If the result of that
@@ -2645,7 +2645,7 @@ the #{class} attribute for output elements.
 <!--%%==========================================================================
 html.syntax.class.mode
 Get the syntax highlighting language for a source-specific element.
-:Revision:version="3.26" date="2016-01-03" status="final"
+:Revision:version="3.28" date="2016-01-03" status="final"
 
 This mode is called by *{html.syntax.class} on source elements that may have
 syntax highlighted. This template should be implemented by importing stylesheets.
@@ -2657,7 +2657,7 @@ It should return a simple language identifier.
 <!--**==========================================================================
 html.media.controls
 Output media controls for a video or audio object.
-:Revision:version="3.26" date="2016-02-12" status="final"
+:Revision:version="3.28" date="2016-02-12" status="final"
 
 This template outputs HTML containing controls for a media play for audio or
 video HTML elements. To work with the built-in JavaScript binding code, it
diff --git a/xslt/common/icons.xsl b/xslt/common/icons.xsl
index 6ae3b1c1..d76af3d9 100644
--- a/xslt/common/icons.xsl
+++ b/xslt/common/icons.xsl
@@ -21,7 +21,7 @@ along with this program; see the file COPYING.LGPL.  If not, see <http://www.gnu
 <!--!!==========================================================================
 Icons
 Specify common named icons to style output.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This stylesheet provides a common interface to specify icons for transformations
 to presentation-oreinted formats. This allows similar output for different
@@ -41,7 +41,7 @@ for proper presentation.
 <!--%%==========================================================================
 icons.svg.mode
 Reduce SVG icons to elements needed for presentation.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This mode matches SVG elements and outputs only the SVG needed for presentation.
 It strips out metadata and other elements and attributes used primarily by
@@ -75,7 +75,7 @@ output of these stylesheets.
 <!--**==========================================================================
 icons.svg.note
 Output an #{svg} element for a note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 $style: The style of the note.
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
@@ -123,7 +123,7 @@ SVG icons can use CSS class names to pick up colors from the !{colors} module.
 <!--**==========================================================================
 icons.svg.note.advanced
 Output an #{svg} element for an advanced note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
 with advanced information.
@@ -140,7 +140,7 @@ By default, this icon uses the #{yelp-svg-fill} class name.
 <!--**==========================================================================
 icons.svg.note.bug
 Output an #{svg} element for a bug note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
 about known bugs.
@@ -157,7 +157,7 @@ By default, this icon uses the #{yelp-svg-fill} class name.
 <!--**==========================================================================
 icons.svg.note.caution
 Output an #{svg} element for a caution note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
 with cautionary information.
@@ -174,7 +174,7 @@ By default, this icon uses the #{yelp-svg-fill} class name.
 <!--**==========================================================================
 icons.svg.note.danger
 Output an #{svg} element for a danger note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
 about dangerous situations.
@@ -191,7 +191,7 @@ By default, this icon uses the #{yelp-svg-fill} class name.
 <!--**==========================================================================
 icons.svg.note.important
 Output an #{svg} element for an important note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
 with important information.
@@ -208,7 +208,7 @@ By default, this icon uses the #{yelp-svg-fill} class name.
 <!--**==========================================================================
 icons.svg.note.note
 Output an #{svg} element for a note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
 with general information.
@@ -225,7 +225,7 @@ By default, this icon uses the #{yelp-svg-fill} class name.
 <!--**==========================================================================
 icons.svg.note.package
 Output an #{svg} element for a package note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
 about packages the user may need to install.
@@ -242,7 +242,7 @@ By default, this icon uses the #{yelp-svg-fill} class name.
 <!--**==========================================================================
 icons.svg.note.tip
 Output an #{svg} element for a tip note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
 with tips.
@@ -259,7 +259,7 @@ By default, this icon uses the #{yelp-svg-fill} class name.
 <!--**==========================================================================
 icons.svg.note.warning
 Output an #{svg} element for a warning note icon.
-:Revision:version="3.26" date="2017-05-24" status="final"
+:Revision:version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with an icon suitable for notes
 with warnings.
@@ -294,7 +294,7 @@ This parameters still affects the size of that character.
 <!--**==========================================================================
 icons.svg.figure.zoom.in
 Output an #{svg} element for a figure zoom-in icon.
-:Revision: version="3.26" date="2017-05-24" status="final"
+:Revision: version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with the zoom-in icon for figures.
 Figures automatically scale images down. This icon shows them at their original
@@ -317,7 +317,7 @@ names.
 <!--**==========================================================================
 icons.svg.figure.zoom.out
 Output an #{svg} element for a figure zoom-out icon.
-:Revision: version="3.26" date="2017-05-24" status="final"
+:Revision: version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with the zoom-in icon for figures.
 Figures automatically scale images down. This icon scales them back down after
@@ -340,7 +340,7 @@ names.
 <!--**==========================================================================
 icons.svg.media.play
 Output an #{svg} element for a figure zoom-out icon.
-:Revision: version="3.26" date="2017-05-24" status="final"
+:Revision: version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with a play icon for media controls.
 
@@ -357,7 +357,7 @@ By default, this icon uses the #{yelp-svg-fill} class name.
 <!--**==========================================================================
 icons.svg.media.pause
 Output an #{svg} element for a figure zoom-out icon.
-:Revision: version="3.26" date="2017-05-24" status="final"
+:Revision: version="3.28" date="2017-05-24" status="final"
 
 This template outputs an SVG #{svg} element with a pause icon for media controls.
 
diff --git a/xslt/docbook/common/db-title.xsl b/xslt/docbook/common/db-title.xsl
index 3c61927b..fc38124f 100644
--- a/xslt/docbook/common/db-title.xsl
+++ b/xslt/docbook/common/db-title.xsl
@@ -38,7 +38,7 @@ elements with optional titles.
 <!--**==========================================================================
 db.title
 Output a title for an element.
-:Revision:version="3.26" date="2017-03-18" status="final"
+:Revision:version="3.28" date="2017-03-18" status="final"
 $node: The element to output the title of.
 $info: The info child element of ${node}.
 
diff --git a/xslt/docbook/html/db2html-list.xsl b/xslt/docbook/html/db2html-list.xsl
index 2363dc0d..9758c100 100644
--- a/xslt/docbook/html/db2html-list.xsl
+++ b/xslt/docbook/html/db2html-list.xsl
@@ -26,7 +26,7 @@ along with this program; see the file COPYING.LGPL.  If not, see <http://www.gnu
 
 <!--!!==========================================================================
 DocBook to HTML - Lists
-:Revision:version="3.26" date="2016-10-27" status="review"
+:Revision:version="3.28" date="2016-10-27" status="review"
 
 This stylesheet handles most list-like elements in DocBook, turning them into
 appropriate HTML tags.
diff --git a/xslt/mallard/common/mal-link.xsl b/xslt/mallard/common/mal-link.xsl
index 7524ecdb..923953f6 100644
--- a/xslt/mallard/common/mal-link.xsl
+++ b/xslt/mallard/common/mal-link.xsl
@@ -569,7 +569,7 @@ attributes containing slash or colon characters.
 <!--**==========================================================================
 mal.link.target
 Output the target URL for a #{link} or other linking element.
-:Revision:version="3.26" date="2017-08-11" status="final"
+:Revision:version="3.28" date="2017-08-11" status="final"
 $node: The #{link} or other element creating the link.
 $action: The #{action} attribute of ${node}.
 $xref: The #{xref} attribute of ${node}.
@@ -664,7 +664,7 @@ fallback to the built-in behavior.
 mal.link.target.extended
 Output the target URL for an element with an extended #{xref} attribute.
 :Stub: true
-:Revision:version="3.26" date="2017-08-11" status="final"
+:Revision:version="3.28" date="2017-08-11" status="final"
 $node: The #{link} or other element creating the link.
 $action: The #{action} attribute of ${node}.
 $xref: The #{xref} attribute of ${node}.
diff --git a/xslt/mallard/html/mal2html-links.xsl b/xslt/mallard/html/mal2html-links.xsl
index d1be20ff..caddabc4 100644
--- a/xslt/mallard/html/mal2html-links.xsl
+++ b/xslt/mallard/html/mal2html-links.xsl
@@ -252,7 +252,7 @@ parameter will be used if provided.
 <!--**==========================================================================
 mal2html.links.ul
 Output links in an HTML #{ul} element.
-:Revision:version="3.26" date="2017-08-04" status="final"
+:Revision:version="3.28" date="2017-08-04" status="final"
 $node: A #{links} element to link from.
 $links: A list of links, as from a template in !{mal-link}.
 $role: A space-separated list of link roles, used to select the appropriate title.
diff --git a/xslt/mallard/html/mal2html-ui.xsl b/xslt/mallard/html/mal2html-ui.xsl
index 5acba1b8..1d81a6b2 100644
--- a/xslt/mallard/html/mal2html-ui.xsl
+++ b/xslt/mallard/html/mal2html-ui.xsl
@@ -98,7 +98,7 @@ http://projectmallard.org/ui/1.0/ui_expanded.html</xsl:text>
 <!--**==========================================================================
 mal2html.ui.links.tiles
 Output links as thumbnail tiles.
-:Revision:version="3.26" date="2015-10-22" status="volatile"
+:Revision:version="3.28" date="2015-10-22" status="volatile"
 $node: A #{links} element to link from.
 $links: A list of links, as from a template in !{mal-link}.
 $role: A link role, used to select the appropriate title and thumbnail.
@@ -317,7 +317,7 @@ This template handles link sorting.
 <!--**==========================================================================
 mal2html.ui.links.img
 Output an image for a link using UI thumbnails.
-:Revision:version="3.26" date="2017-08-11" status="final"
+:Revision:version="3.28" date="2017-08-11" status="final"
 $node: A #{links} element to link from.
 $thumbs: A list of candidate #{uix:thumb} elements.
 $role: A link role, used to select the appropriate thumbnail.
@@ -396,7 +396,7 @@ ${node} element.
 <!--**==========================================================================
 mal2html.ui.links.img.src
 Output the #{src} attribute for a thumbnail image.
-:Revision:version="3.26" date="2017-08-11" status="final"
+:Revision:version="3.28" date="2017-08-11" status="final"
 $node: A #{links} element to link from.
 $thumb: A #{uix:thumb} element.
 $width: The width to fit thumbnails into.
@@ -418,7 +418,7 @@ Override this template if you need to support multi-directory output.
 <!--**==========================================================================
 mal2html.ui.links.img.attrs
 Output the #{width} and #{height} attributes for a thumbnail image.
-:Revision:version="3.26" date="2017-08-11" status="final"
+:Revision:version="3.28" date="2017-08-11" status="final"
 $node: A #{links} element to link from.
 $thumb: A #{uix:thumb} element.
 $width: The width to fit thumbnails into.