DisplayColor: Properly handle a minValue

* Previously setting anything as a minValue would cause the
  percentages to get out of whack. For instance, setting it to 35
  would cause the maximum percentage to climb above 100% as well
  as still allowing the value to be set lower than the min.
* This makes the maximum for the slider the max value minus the min
  (so we get the proper spread for min to max) and then adds the min
  back on before setting so we can't possibly go below the min.

Change-Id: I8dcdc422f54847940351fae10c74af6301d1e1be
Settings: Remove leftover from old theme chooser

Change-Id: Iaf97e2b94c27839eb4f9827a77917fe21a311b4c
Revert "Allow changing theme to Holo.Light without crashing"

This reverts commit 0f5da111b219f37d45e2b1d28b88102046ec15fa.
Settings: Fix alignment of print settings icon

In case the print header row was not used for an account row before,
the print icon appeared shifted to the left.

Change-Id: Ieeafca0c16083f4a45b57a1015bb412da26bb0e9