deleteRow function added, js and jsp files improved
RoomAction: deleteRoom method added (not working)
RoomAction: deleteRoom method updated (WORKING!)
Merge branch 'master' of https://github.com/rastek/Krzypopa
Merge branch 'Idlero'

Conflicts:
	war/src/main/webapp/assets/js/additions.js
	war/src/main/webapp/assets/js/price.js