CM11 Themes: Pipe stderr from aapt to logcat.

This will allow users to see why aapt failed when installing a
theme.

Change-Id: I74314daae9e844dce2f4c3eeb6c78a40b5ad6357
Merge remote-tracking branch 'cm/cm-11.0' into cm-11.0
Merge pull request #6 from androidarmv6/cm-11.0

androidarmv6:cm-11.0.