added option to create a closing end-of-year booking which adds the yearly interest to the account
added better errors to make frontend development easier
added task to dump database into fixtures and added simple fixtures for development
added :add_interest_to_deposit_annually to frontend
added year-end-closing to frontend ("Jahresabschluss")
fixed name bug in rake tasks and added possiblity to use structured adress data
avoid exceptions if contacts do not have a first name or name