Fix Tim's OCD

Change-Id: Ibbe385311a1d318117d681f38288a79f78e6cab1
Settings: Show heads up at the bottom of the screen (2/2)

Due of user requests and indeed especially on hw key devices for a better
workflow we add an option to show heads up notifications on the bottom instead
of the top.

Animation we leave as is due that if it slide from the bottom into the screen it happens
to often that the user accidentaly interacts with it. If it comes from the top of the
container we add, the user has enough time to realize it. Sometimes a ms can make a big difference.

Change-Id: Ieab601df1dc4fa5350fe4b9e4952198eb8e2d788
HeadsUp: option to launch in floating window (2/2)

Conflicts:
	res/values/liquid_strings.xml

Change-Id: I89ae127c5f6f26fd1e6be99f160615d51b29e520
Settings: add new slim actions

add central strings and array for it

Change-Id: Id6d34fd101aad0d494ae594a0ff802edb78937e5
Settings: allow device trees to invoke custom display settings

in this case gesture control settings.

Intent used: com.slim.action.LAUNCH_SCREEN_OFF_GESTURE_SETTINGS

Change-Id: I37c1236778eebcc2fa40297ab6b0b7a5eb7d34a5