Camera2: Fix video button size and clean up

Fixed this - http://review.cyanogenmod.org/#/c/71250/ (Ruukku Puu's comment)
Merged v19 folders

Change-Id: Ia21b64e398e3b7d5aba0ac7a35cc506ffedd05a6

Conflicts:
	res/drawable-hdpi-v19/btn_shutter_pressed.png
	res/drawable-hdpi/btn_shutter_pressed.png
	res/drawable-mdpi-v19/btn_shutter_pressed.png
	res/drawable-mdpi/btn_shutter_pressed.png
	res/drawable-sw600dp-hdpi-v19/btn_shutter_pressed.png
	res/drawable-sw600dp-hdpi/btn_shutter_pressed.png
	res/drawable-sw600dp-mdpi-v19/btn_shutter_pressed.png
	res/drawable-sw600dp-mdpi/btn_shutter_pressed.png
	res/drawable-sw600dp-xhdpi-v19/btn_shutter_pressed.png
	res/drawable-sw600dp-xhdpi/btn_shutter_pressed.png
	res/drawable-sw600dp-xxhdpi-v19/btn_shutter_pressed.png
	res/drawable-sw600dp-xxhdpi/btn_shutter_pressed.png
	res/drawable-xhdpi-v19/btn_shutter_pressed.png
	res/drawable-xhdpi/btn_shutter_pressed.png