Setup default gitlab.yml with possibility to override default url via environment variable.
Setup default gitlab.yml with possibility to override default url via environment variable.

This only applies to packaging with https://pkgr.io.

8thcolor/eurucamp2014-htdsadr,8thcolor/rubyconfau2015-sadr,8thcolor/eurucamp2014-htdsadr,8thcolor/rubyconfau2015-sadr,8thcolor/rubyconfau2015-sadr,8thcolor/eurucamp2014-htdsadr