Adopt announcements to use DI
Remove proxyquire
Adoptions to let tests run (well, still not all of them)
Merge branch 'master' into cleanup
layout of the get group page
minor refactoring
Merge pull request #185 from leider/master

not much today :)
Fix typo
Make tests running
Merge pull request #187 from triplem/cleanup

Adopt announcements to use DI
Merge remote-tracking branch 'upstream/master'
ie fix
quirksmode:off
logging at wrong place
changed indexpage of groups (prepare for badges)
more ignorant git
order of items in admin menu now identical to main menu
link for bugfixes in github now opens separate window
time now shows "Uhr" in activities detail
really minor UI fix