CMFileManager: add zh_CN translations

Change-Id: Ie71fa12fd09f394de5a737f30c8aa1e7e5c837ec
CMFM: Don't show the cancel button if action is non-cancellable

Change-Id: Ic8078d75aa8c5e77f37f3110cdd8cbf5e65fe790
CMFM: update translations

Change-Id: I2c395f4bc684580b1c01513fcf84f6923f60ca1b
Merge "CMFileManager: add zh_CN translations" into cm-11.0
Save scrolling position and restore it when going back

Patch 1-3: Clean up
Patch 4: Don't scroll in the wrong direction
Patch 5: Remove logging and fix indentation

Change-Id: I5dfa92829a11ce94c4df9bb9891715b48f2b0900
Merge remote-tracking branch 'upstream/cm-11.0' into cm-11.0