phobos commit, revision 2101


user: rsinfu

msg:
Ddoc: Fixed bug 4634 and some trivial doc isues in std.algorithm & range.

- Bug 4634: typo in levenshteinDistanceAndPath documentation
- Got rid of mentions of iterator-age begin(r)
- equal() not equals()

http://www.dsource.org/projects/phobos/changeset/2101