Settings: Make "Swap volume buttons" optional (2/2)

Credits:LordClockaN

Made a little modification on my own to fix the 'checkbox reverting back to default value' issue
Hover settings (2/2)

- Require full screen
- Exclude non-clearable
- Exclude low priority

Thanks @Der-Schubi for this.
Adapted to crDroid sources

Change-Id: I05584f5d090f7aa044f8b67ba09192984ce83822

Conflicts:
	res/values/cr_strings.xml
	res/xml/settings_headers.xml
Hover notification timeout (2/2)

Allow user to set how much time the hover notification will stay visisible without touch the screen

Change-Id: I6a6fb5609a8dd4f97bfefdbbab38b87de8d2a11a

Conflicts:
	res/values/cr_arrays.xml
	res/values/cr_strings.xml
HOVER: Option to exclude topmost app [1/2]

Thanks to @Der-Schubi
The hole idea is from him and i just adapt to crDroid sources

Conflicts:
	res/values/cr_strings.xml
	res/xml/hover_settings.xml
Revert "Settings: Second Clock (2/2)"

This reverts commit 29f415753b3f39f11efb288e9890a0fd6a7fc887.
Settings: Hover, enable from Settings (2/2)
Credits:LorDClockaN
Hover:Master Switch
Revert "settings: Enable location mode header switch"

This reverts commit 8fc06461a77afb037daea108d1e809380c929fda.
Hover Switch disabled as default