MediaScanner behavior on boot (3/3)

Lets you enable/disable/ask (with a notification) media scanning on boot.
Can speed up boot and reduce initial boot lag from MediaScanner

Change-Id: Ib09f2de2b3ae3e62eb59be681cf48e0bce14ef17
PowerManager: Don't wake up device when charger is plugged/unplugged (2/2)

This will add the option to disable waking up the device when a charger
is plugged or unplugged.

added as well config option to disable volume rocker wake for devices
which do not support it well

Change-Id: Idf37087b4cdee94c8557d67ab3d491d65bc60c36
Add Camera sound toggle [1/3]

Change-Id: I77e2259f753ec8a37e5dcc97df100b588a45d3b0
settings: Slims new Power Menu (2/2)

gmillz already prepared it and I finished it now. Idea was to be more
flexible on the power menu but at the same time not complicated.
So we adapted Power Menu to our dslv system which allows to sort
drag swipe etc the entries.

So user can now have the power menu how they like it.
As well custom apps or activities can be added

So currently:
airplanemode
custom apps
screenshot
reboot
sound
power off

are available as options to add or remove or customize with our
easy dslv settings

As well we are only using our central classes for it....means adding
whatever shortcut is mostly only a 10 line change in future

Change-Id: I8a3f99bdd0ffeab84b8b4067562d81f09c862273