removed the euro symbol out of config/locales/job_offers/de.yml to fix possible deploy error
deleted config/locales/views/job_offers/de.yml to debug the deployment failure
removed inconsistencies between two yml files (de/en)
removed a typo in the de.yml file
added a rake db:drop and rake db:create command for the travis script in order to fix a bug where a loggin in user wants to view a job offer