Enable Back-key when go to Emergency call

When go to "Emergency call" from lock screen, back key is disappeared.
It is difficult for user to find the way to go back to previous screen.
This might be bad user experience. So we are going to make it enable.

Change-Id: Iefcca9b8943472c24ddbca6e3ec3441e93e5be91

Patchset: 2
http://review.cyanogenmod.org/#/c/57524/
Settings: Don't crash if we pause too quickly

Notifier is unregistered in every case in pause.
However, if you close the Settings app too quick, the notifier
might not be registered at all, causing an IllegalArgumentException
during the unregistering.

Change-Id: I54141cbfc91d08c28ef524f4155b673ae8dee90e

Conflicts:
	src/com/android/settings/Settings.java
Settings: Don't hide home category if user has a settings capable launcher

By default the settings app hides the home category if it notices the user
has 1 launcher. Due to the ability to have settings per launcher, if the
user only has one launcher which happens to support settings, hiding this
category renders that feature useless.

So now we check if the user has < 2 launchers AND whether they support
a settings panel.

Change-Id: Id5dd94091a31fd9ee3637e0975816481903255bf
Settings LightSettingsDialog: update led on text change
Change-Id: I135f37829b9b4fb2166afac9d9531b76a62f3ef7
Live Volume Steps [2/2]

-Created by Meticulus
-Credits BeanStalk

-Volume steps changes are instant, no need to reboot!

Change-Id: Ibc913ecdb89f1974ab5ab00f45ce6db4d4871c3e
Signed-off-by: Dragon7780 <Dragon7780@hotmail.nl>

Conflicts:
	res/values/fusion_arrays.xml
	res/values/fusion_strings.xml
	res/xml/sound_settings.xml
	src/com/android/settings/SoundSettings.java
Revert "Settings: Don't hide home category if user has a settings capable launcher"

This reverts commit 65e418294c0063a28489257d9e92a9a505c4aafc.
Fix build
Revert "Settings: Don't crash if we pause too quickly"

This reverts commit 98a3faeb46e7aae41136f9544acc09fd2c21800f.
Settings: Don't crash if we pause too quickly

Notifier is unregistered in every case in pause.
However, if you close the Settings app too quick, the notifier
might not be registered at all, causing an IllegalArgumentException
during the unregistering.

Change-Id: I54141cbfc91d08c28ef524f4155b673ae8dee90e
Revert "Settings: Don't crash if we pause too quickly"

This reverts commit 98a3faeb46e7aae41136f9544acc09fd2c21800f.
Volume panel overlay timout [2/2]
fix derp
Fix Sound settings