Add generate action to labels controller which allow creation of default labels set for project
add Gitlab::Label class and different color labels for default labels set
Include default labels in issues autocomplete etc. Show colored labels on issues show page
fix api delete hook test
Merge branch 'feature/labels_set' of /home/git/repositories/gitlab/gitlabhq
Merge branch 'master' of github.com:gitlabhq/gitlabhq