Mod: Lockscreen lense style obeys time format

as requested here: http://code.google.com/p/cyanogenmod/issues/detail?id=2824

using localized am/pm sting like in any other clocks - can look funny
on languages not using am/pm - but thats intended by the localization

Change-Id: I4622e95be78856735de40e8961d855c665a3e687