Overworked footer #112
Merge branch 'develop' into develop-js

Conflicts:
	app/views/layouts/application.html.erb
	config/locales/views/layouts/de.yml
	config/locales/views/layouts/en.yml
#112 Added imprint to footer after mergin develop intpo develop-js, since the imprint did just exist in develop
tests and controller functionality for issue #119
added Buttons and tests to the view (#119)
* some typos
* small bugfixes related to the different views of a job offer
fixed job offer search and implemented some tests
raised test coverage + some minor code changes
removed unused helper methods
Merge remote-tracking branch 'origin/develop-ak' into develop
fixed schema
added test for #chair:new, just to make sure
refactored respond_to
refactored studentsearch_controller a little bit
Merge branch 'develop-ak' of https://github.com/tkowark/hpi-hiwi-portal into develop
refactored students_controller#update a little
refactored students_controller#update a little
some more refactoring + testing
Merge remote-tracking branch 'origin/develop-ak' into develop
added more flexible language handling to user factory