cLock: refactorings and cleanup (no functional changes)

Change-Id: I4ca0f3eea0cb3260f248d3abc6099b45c3ed1c27
Merge "cLock: refactorings and cleanup (no functional changes)" into cm-10.1
Merge branch 'cm-10.1' of github.com:CyanogenMod/android_packages_apps_LockClock into cm-10.1