first mockup and refactorings
main features implemented
added button to show app state
added 360 photos to gitignore and included notifications
Merge branch 'master' into implemented_photo_management

Conflicts:
	.gitignore
	tools/connect.php
added .gitkeep to images directory
Merge pull request #1 from VirtualCampusLingen/implemented_photo_management

Implemented photo management