Merge pull request #4 from dcsaszar/cruise

Re-enable opening boxes, even if filtered
Ein wenig Log auf Level info
Robust gegen Probleme bei GitHub-Mailermittlung
gemfile cleanup
[Bugfix] dependencies are cleaned up correctly on destroy
build- & delete-Actions für Projekte sind POST; show-Action für Projekte liefert Projektdaten
keine Default-Routen mehr
Search fixes

* prevent unwanted jumping to top with empty query (seen on Firefox)
* allow URL hash modification (for bookmarks, currently delayed until
next update)
Statistics overlay for projects