Add author to German translation

Modify the attachments path again. Sorry for breaking backward compat…

…iblity, but avoid all useless directories seems like a good thing to do.

Add a test for creation of tickets via MTA, fixes ivaldi#52

Merge branch 'customer_login'

Merge branch 'master' of github.com:ivaldi/brimir

Add setting to avoid new ticket mails.

Add statuses as well.

Fix assign link.