fb: less notifications sound (1/2)

add back the 4.3 feature like it was.
User can setup how often notification sound
for an app comes trough so that
it does not annoy to much

Change-Id: I3d7b2ef2e2ff99b7c23880626e0268ec4c5d8543
Screenrecord: Create the Screenshots directory if it doesn't exist

Change-Id: I2b0458eed024dbda97e9e1ea3426c12d29add781
[1/2] Base: Change of default stream type controlled by volume rocker capabilities

PS2: first attempt to include empty default mode

PS11: none default value working

PS18: cleanup, change of by default altered stream to STREAM_RING at phones

OmniGears: https://gerrit.omnirom.org/#/c/2376/
Change-Id: I78d26b0bd41f5b58514ae9c68208a8c950396823

Conflicts:
	media/java/android/media/AudioService.java