migrations for ssh key STI and deploy keys <-> projects relation
Check git version in gitlab:check
Model specs for DeployKeys
Feature tests for deploy keys
Remove project_id from keys table
Feature: Deploy keys between projects
link contribution guide to test section in README
Merge pull request #3845 from senny/link_contribution_guide_to_test_section

link contribution guide to test section in README
modify api to work with new deploy keys
Add migration code for existing deploy keys
Merge branch 'feature/improve_deploy_keys' of /home/git/repositories/gitlab/gitlabhq
Update CHANGELOG
Fixed forgotten unicorn to puma in a comment.
Merge pull request #3847 from boldt/unicorn-to-puma

Fixed forgotten unicorn to puma in a comment.
Usability improvements to deploy leys
Style pagination
Restyle admin -> groups page
fix API route to delete project hook
Merge pull request #3856 from NARKOZ/delete-hook-api

fix API route to delete project hook
Save backup time as is.  Fixes #3857.