CMFileManager: Added Polish language

Patch Set 2: Also added themes translation
Patch Set 3: Correction
Patch Set 4: As above
Patch Set 5: Correction
Patch Set 6: Another correction and some fixes

Change-Id: I9405bd1dce64ddbe800d599202104c9ddb833a25
Merge "CMFileManager: Added Polish language" into cm-10.1