base: fixed offscreen volume key handling

http://jira.omnirom.org/browse/OMNI-757

Dont handle up and down

Change-Id: I2b073aa2aef2fa671071257521b906dd6fddfb3c

Conflicts:
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
Base: BootAnimation: Play boot/shutdown animation and music [DO NOT MERGE]

Add support to show customized boot and shut down animation, as well as music.

modified to OmniRom

Change-Id: Iaa38e5b775887a7e8e38cbb52f84f66132c9e22e

Conflicts:
	services/java/com/android/server/power/ShutdownThread.java
Tethering: fix NPE when retrieving active interfaces

When in airplane mode getActiveNetworkInfo() may return null.

Change-Id: Icba37abb51b9378c8af73d9f6587e04c588dd85e
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
[1/2] Base: On-The-Go mode

On-The-Go turns on the camera of your phone and streams it to an overlay,
which is drawn over everything.
this makes you feel like your display is transparent, as you see the content
behind it.

its really useful when you are using your phone while walking, thats why
we called it "On-The-Go"

allows to change transparency of the overlay via the notification.

have fun!

Change-Id: I3efccb5fac41a946f6cb4992e9181422980ee5e4

Conflicts:
	core/java/android/provider/Settings.java
	core/res/res/values/custom_strings.xml
	core/res/res/values/custom_symbols.xml
	packages/SystemUI/AndroidManifest.xml
	packages/SystemUI/res/values/custom_strings.xml
	policy/src/com/android/internal/policy/impl/GlobalActions.java