zoom in zoom out
merge with develop
Ant build
Ant, round 2
Missing dependencies for ANT
jUnit task for ANT
CursorTest
testing the testing (lol)
Merge develop_3

Conflicts:
	src/cz/cvut/fit/project/noted/toolbars/Toolbar.java
Toolbar update
render builder now synchronizes  model when encountering unknown symbols.
backspace/delete functionality
reworked key handling, fixed focus related issues
new music player
accidental rendering
Merge commit 'ecae89fff3bc6f742bb2e5f9c1752648915f3b9f'

Conflicts:
	src/cz/cvut/fit/project/noted/MainPanel.java
	src/cz/cvut/fit/project/noted/editor/ModelEditor.java
	src/cz/cvut/fit/project/noted/keyboard/KeyHandling.java
	src/cz/cvut/fit/project/noted/rendering/Tab.java
Key handling update for accidentals