changed the database-error that was inserted by deleting the Rails.env-variable.
not the sites work again using both databases
- updated the dates for the semester
- changed the email-adress in config/environments/production.rb from simons to the official HEKweb
- added the new semesterbrief
- changed greetings on the start-website
added some lines concerning error_notification, hopefully it will work
Merge branch 'master' of github.com:HEKweb/HEK