LockClock: Use solid actionbar

Change-Id: Iabef4ed51196b83276c77522bbf127c713da1517
cLock: Enable up navigation

When the user enters cLock preferences through settings:
* Up navigation is enabled
* 'Done' icon on actionbar is hidden

When the user enters cLock preferences by adding a new widget:
* Up navigation is enabled in submenus
* 'Done' icon is only visible on top preferences menu

Change-Id: I3029618e0d158d766578568989f2e535593d0f41
LockClock: Update DE translation

Change-Id: I37503c92e88a5202666b7d48996c3e62cf396b19
Merge "LockClock: Use solid actionbar" into cm-11.0
Merge "cLock: Enable up navigation" into cm-11.0
Merge branch 'cm-11.0' into martincz