Settings: Advanced low battery indicator options (2/2)

Based on a Slim Roms implementation with a special thanks to @kufikugel
This commit introduces following new modes to indicate low battery.
Accessible through action bar and following PA way of features implementation (clean, simple, functional and beautiful)
     * 0 = show dialog + play sound (default)
     * 1 = fire notification + play sound
     * 2 = show dialog only
     * 3 = fire notification only
     * 4 = play sound only
     * 5 = none

PS2 - Swap battery and warning icons on action bar
PS3 - Update commit message

Change-Id: I2d5358962c3bbf7b60c8af19aad9db3a4a8071de
Revert "[2/2] Power connect/disconnect notification support"

This reverts commit dee26ca45902c5a0bd4147125e7aa63cb010c3f1.

Conflicts:
	res/values/pa_strings.xml
	res/xml/navigation_bar_settings.xml
	res/xml/sound_settings.xml
	src/com/android/settings/SoundSettings.java
Merge remote-tracking branch 'PA/kitkat' into remix-staging