Storage location configuration options

Based on d050f80 and 2bb0437 in the former Camera package

PS2: Whitespace cleanup

PS3: Fixed filmstrip preview from camera.

PS4: Check volume availability

PS5: Load the settings when either the camera opens
  or when the gallery opens

PS6: Remove unused import

PS7: Rebase

PS8: Change icon to stat_notify_sdcard, add credit for
  original sources

PS10: Code style cleanup, include icon, and add setting
  to the camcorder settings

PS11: Rebase, reword commit message

Change-Id: Ic484149f1f051aea5c5c8440bbc322e9924683a7

Conflicts:
	res/values/slim_strings.xml
Gallery2: support audio effects during video play.

Change-Id: I1706a1aaa9d76bc84b2e0720991fad9f7c45c336
CRs-Fixed: 516108
CRs-Fixed: 516113
CRs-Fixed: 516114

Conflicts:
	res/values/colors.xml
	src/com/android/gallery3d/app/MovieActivity.java