delete obsolete imports
live annotations with sockets
Saving to database works. Elasticsearch commented, websocket onmessage doesn't run
fix: notes saving
Start time is synchronized with player time
actual user data is used, note constructor is changed
adding notes with webocket works
message seperation in sockets
Merge branch 'klym' into develop

Conflicts:
	website/app/controllers/NoteController.java
	website/app/views/Application/add_video.html
	website/app/views/VideoController/addVideo.html
	website/app/views/VideoController/video.html
	website/public/css/style.css