added unicorn config
gems for deployment
capified and a unicorn init.sh
added google analytics script
Merge branch 'develop' into feature/deployment
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
master as deployment branch
removed unnescesary deployment user
another little improvment for the deployment user
made deploy.rb example file
updated gitignore to ignode deploy.rb
deployment branch back to master