Iterator: merge several changes from trunk.

- Update iterator_facade test for #1019
  (header change already merged).
- Category of each iterator is reduced to a known category before we try to
  find a minimum. Fixes #1517.
- `function_input_iterator` from Dean Michael Berris. Fixes #2893
- Fix typo in `boost/iterator.hpp`. Fixes #3434.
- Always include `add_reference` header in iterator adaptor header.

Did not merge changes for #1427.


[SVN r70709]

1 files changed, 0 insertions, 0 deletions

diff --git a/libs/iterator b/libs/iterator
-Subproject d45b57c33c89e00670392d8f74fa95fcc9f93f3
+Subproject 1ca1caddff214331d8e52d86f52f607af4550c8