added unicorn config
gems for deployment
created new homepage
added 5 latest job offers and 3 latest employers
deleted sessioncontroller #326
fixed tests
only shows latest jobs and employers if they exist #326
included root link in menu for staff and student #326
fixed layout problem with sidebar #372
capified and a unicorn init.sh
added google analytics script
user edit in new layout and other small fixes
bringing back the dropdown and other small things
Merge branch 'develop' into feature/deployment
Merge pull request #374 from hpi-swt2/feature/Job-offer-page

Feature/job offer page
Merge remote-tracking branch 'origin/develop' into feature/new-homepage

Conflicts:
	app/views/layouts/application.html.erb
Merge pull request #372 from hpi-swt2/feature/new-homepage

Feature/new homepage
nginx conf and some capistrano tasks
even more deployment configuration
cleaning up configuration jungle
Merge branch 'develop' into feature/analytics

Conflicts:
	app/views/layouts/application.html.erb
Merge pull request #376 from hpi-swt2/feature/analytics

Adding Google Analytics
Merge branch 'develop' into feature/deployment

Conflicts:
	app/models/student.rb