Don't email omniauth created users
fix: grouping by date desc doesn't sort it too
fix build failure

(https://travis-ci.org/gitlabhq/gitlabhq/builds/3593153)
default gitlab.relative_url_root to ENV['RAILS_RELATIVE_URL_ROOT']
Show only ≤16 lines of code in a discussion (fix issue #2860).
Fix image url for emoji.
Include Riyad Preukschas suggestions.
Capistrano deployment example scripts
allow force=yes rake gitlab:setup for capistrano deploy:cold
A little bit of codestyle improvments
System hooks execution moved to System hook service
Method moved to service
Migrations for convertion merge_status added
Database schema updated
State machine added for merge_status field
class.self methods moved to scopes
human_merge_status replaced by human_merge_status_name
We don't need to check .profile now that gitolite is replaced by gitlab-shell
deploys under git user
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