Basic Sphinx integration is now complete. Remove the documentation
aspects of the 'dist-docs' target in favor of the htmldocs target.

Signed-off-by: Stephen Finucane <stephen@that.guru>
Signed-off-by: Ben Pfaff <blp@ovn.org>

Signed-off-by: Stephen Finucane <stephen@that.guru>
Signed-off-by: Russell Bryant <russell@ovn.org>

This utility isn't going to be as portable as most of the Open vSwitch
utilities, unfortunately.  I'm happy to take improvements to make it
able to work with, e.g., the "man" program from BSD.  (I haven't tested
with that program, but I suspect that it is somewhat different from the
GNU version.)

The output of this program can already be viewed at:
	http://openvswitch.org/support/dist-docs/

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>

Converts the majority of docs over to use the Markdown language for
pretty printing on GitHub. It's a rough first convertion without
exploiting the full potential of Markdown at this point. Section
titles and indentation are fixed as needed. Minimal docs interlinking
is added.

Signed-off-by: Thomas Graf <tgraf@noironetworks.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>