SystemUI: PL translations

Change-Id: I61cd2410aac3e0cf99023d00f82a8467d9f4bbec
Core: PL translations

Change-Id: I4440e5d749cb40581df13192b184aaff7fa806b1
Merge "SystemUI: PL translations" into cm-10.2
Merge "Core: PL translations" into cm-10.2
code cleanup and update license

Change-Id: Idfad3742336273a29b04d2bf35b3e27f68cf5805
Merge branch 'cm-10.2' into martincz