added job_offers to detailed chair page #51
Merge remote-tracking branch 'origin/develop' into develop-ja-chairs-detailed-page

Conflicts:
	app/views/chairs/show.html.erb
refactored search_filter_sort form
New Joboffer Button inline with Headline
added jobOffer lists to detailed chair page, tests not green [ci skip]  #51

+ lot of refactoring
Merge branch 'develop-ja-chairs-detailed-page' of https://github.com/tkowark/hpi-hiwi-portal into develop-ja-chairs-detailed-page

Conflicts:
	app/views/job_offers/index.html.erb
fixed job_offer_controller and job_offer_view tests, #53
added translation for the activerecord error messages that occur when the user tries to save a new invalid job offer / chair / student. In the course of this commit the template on how to create yml files for models changed! The README file for locales is updated and also the wiki entry on internationalization. Instead of t("job_offer.title) now one has to call t("activerecord.attributes.job_offer.title"). Through this change it is possible to use already translated yml files from public repositories in order to translate error messages containing the attribute names of models.
added the command rake db:seed to the travis script for deployment
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
this is our 'production' system. Would be great if not all data would be removed everytime we add some functionality...
Merge remote-tracking branch 'origin/develop' into develop-ja-chairs-detailed-page

Conflicts:
	app/controllers/job_offers_controller.rb
	app/models/job_offer.rb
	app/views/chairs/show.html.erb
	app/views/job_offers/_overview.html.erb
	app/views/job_offers/_sidebar.html.erb
	app/views/job_offers/_sort_filter_search.html.erb
	app/views/job_offers/archive.html.erb
	app/views/job_offers/index.html.erb
	config/locales/views/job_offers/de.yml
	config/locales/views/job_offers/en.yml
	config/routes.rb
merged develop
fixed sort filter search sidebar
fixed details view style
added status strings for "working" and "open"
added some to seeds #51