Added support for DC-HSPA+

Change-Id: I1503c464b2db841fc193e57311e62415f5ff40f2
QuietHours: disable volume change tone during quiet hours

* Its quiet time, you're trying to be quiet, why would the volume
  change make noise when you're being quiet?
* Turn this off when system sounds are disabled during quiet hours

Change-Id: I6c7eb9d52f5dab9349bf2b8f72ddcb0ab45834fa
Forward port CM Screen Security settings (1/2)

* Lockscreen Vibrate
* Slide Lock Delay
* Menu Unlock
* Home Unlock
* Variable size pattern lockscreen
* Toggle dots/error pattern visibility

Forward port from cm-10.2, adjusted for 4.4

Change-Id: Ie1ccaec43ca75474e92f96c60e15d7b75796ac5f
Keyguard: smooth background change.

Change-Id: Ia0e4d0000db72b5cdb6fede03791805e34fa311d
Performance: Add low RAM option (2/2)

* Allow users to choose between more free RAM available vs full KitKat UI features

Change-Id: Ia7f4d5089f400ac7edec0ea3e3beb22c0ad6b8db