Use checkout ref instead branch for clone
Version 4.0.0
fix typo
Merge pull request #52 from lodagro/patch-1

fix typo
Improve git fetch for runner
Merge branch 'master' of github.com:gitlabhq/gitlab-ci-runner
Merge branch 'master' of https://github.com/gitlabhq/gitlab-ci-runner

Conflicts:
	lib/build.rb