Revert "start the PowerSaver service if activated"

This reverts commit 644cabdfe59f224a8b66f14977dbf4c510fc0bdd.
Revert "Reimplement PowerSaverManager !"

This reverts commit eb841c8ab6f61f7ad5bbd419fd8b3d20a3e8441e.
fb: Handle navbar heights correct on dpi changes + more (1/2)

Till now we set the height in px in the settings. Which is a problem
especially on multiDPI roms like we are when the user afterwards changes
the dpi due that it isn't calculated correct anymore on the new dpi.

This commit does
- save the dp value in provider and calculate the real px in fb
- clean up the settings stuff for it + do it a bit nicer (only settings part
  where we do not set the value for the listview)
- as well this commit disables movable navbar for tablets (we may will enable
  it in future but it needs a lot more work to have it on tablets correct working)
- add Converter class for common methods we always use....till now only px->dp
  and dp->px method

Change-Id: I3ddcb993f82758bf2d7a183dcb8023b2fcb8f6c8
Update Holo UI to White UI

Change-Id: I179329d483429dc52553b4cac984451e2fb6a687
Frameworks: TRDS fix possible UI freeze on auto mode change

- only call on theme mode change when auto mode changes. Under special conditions
  it can happen that it is called twice
- ensure that whenever a mode change is really done to close the notification shade
- minor cleanup

Change-Id: I2f5c7fbcdad71c8dcbf547f4bc5943a95416d7a3