Added installscript that installs GitLab completely.
fixed typos found after test. Rake is maybe doing bad things when having to wait for oo long for mysql pw... lets see how this works.
sed problem altering also commented stuff in gitlab.yml
added some comments
minor fix in asking the mailadress for exim testpurposes
Why didn't I know indentation was so important for a .yml file?
GitLab now uses gitlab-shell instead of gitolite