update gitlab:check to look for update hook, not post-receive
Standardize commit diff api url, change blob api url, add get single commit

Use "/commits/:sha/diff" as opposed to "/commit/:sha", keeping in line
with existing api urls (e.g. "/projects/:id", etc.)

Fix 500 error resulting from a diff api call with an invalid commit hash

Move "/commits/:sha/blob" to "/blobs/:sha", leaving the old path for
backwards compatibility.

Add ability to get a single commit via "/commits/:sha"
More entries to 6.1 CHANGELOG
Invalidate events cache when project was moved
Fixed up wording on the new SSH key page.
Merge pull request #4924 from jameswritescode/update_check_to_verify_update_hook

update gitlab:check to look for update hook, not post-receive
Merge pull request #4939 from fintler/key_gen_help_typo

Fixed up wording on the new SSH key page.
Merge pull request #4906 from alexvh/standardize_diff_api_url

Standardize recently added commit diff api url
Update sidekiq and redis-rails
Merge branch 'master' of github.com:gitlabhq/gitlabhq
Merge branch 'feature/reset_event_cache' of /home/git/repositories/gitlab/gitlabhq
Minor UI fix
Dont update namespace if User name was changed. Use user#username for namespace name because Namespace#name validates by uniq
List groups on Dashboard#projects page
Remove colon
Merge pull request #48 from gitlabhq/master

Update