demo project with opencv
Create CaptureActivity
make image black and white
put tracker in its own class
Merge remote-tracking branch 'origin/master' into GuiSudokuFields

Conflicts:
	jni/Application.mk
	project.properties
	res/layout/activity_main.xml
	res/values/strings.xml
	src/ch/zahw/students/sudokuhelper/MainActivity.java