updated ebuild for gitlab-shell-2.4.0 to accept sensible keywords. this is a dependency of gitlabhq-7.6.1.
added ebuild for gitlabhq-7.6.1 and a patch to fix the gemfile to use a newer version of the krb5-auth gem
added dependency to krb5
try with explicit require definition
mask gitlabhq-7.6.1 and gitlab-shell-2.4.0, they both don't work yet