Devise Translation
Changed some Phrases
User E-Mail Confirmation
Changed seed otherwise it won't work properly anymore. Notice: Seed-Users need to be confirmed, because Confirmation-Link won't work due HTML-escaping (needs to be fixed for non-html messages). See: http://stackoverflow.com/questions/4793504/rails-3-and-devise-escaping-mailer-templates
Merge branch 'staging' into new_user_concept

Wrong commit to staging branch.