Adding links to the merge requests and group documentation.
Merge pull request #4619 from thomasbiddle/merge_request_api

Adding links to the merge requests and group documentation.
Added show user name as a tooltip on every call to link_to_member when the name is not shown inline
Show tooltip with author email for commit
Merge pull request #4634 from jacargentina/master

Added show user name as a tooltip on issue participants list
fix typo
Remove unecessary %br in help area
Merge branch 'master' of github.com:gitlabhq/gitlabhq
Merge pull request #4651 from mahmouds/patch-1

fix typo