Merge pull request #141 from tkowark/develop

Fixed chair show and refactored chairs controller
Merge remote-tracking branch 'origin/develop' into realmaster
Merge remote-tracking branch 'origin/develop' into develop-ak
added initial chair_pages_spec and made chair controller + user model a little more robust against permission violation
more chair tests
added some users controller tests
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