switch gitlab-shell to correct version

a gitlab:check does say that you need v1.1.0 of gitlab-shell...
Merge pull request #3441 from Finkregh/patch-2

switch gitlab-shell to correct version
Use latest gitlab-grit fork to prevent gollum override gitlab-grit. Fixes issues related to gpg signed commits and other fixes from gitlab/grit fork
fix gollum
5.0.1
fix resicpes to point 5-0-stable branch
Fixed check.rake due to #3530
Merge pull request #3535 from boldt/5-0-stable

Fixed check.rake due to #3530
Merge branch '5-0-stable' of https://github.com/gitlabhq/gitlabhq into 5-0-stable