Torch: UG translations

Change-Id: I14ebc91a6c92b0cfe9401cda8eeea31023674704
Torch: refactoring

Fixed some Android Lint warnings.
Removed unused strings and imports.
PS2: added AndroidManifest.xml, forgot to copy it.
PS3: buildbot doesn't seem to like empty "text" attribute, removed it.
PS4: rebased.

Change-Id: Ibcb7aa0f38a5433795dcd822ce49b90fb1f315d6
Torch: Fix aapt warnings [translation]

Change-Id: Ibff488e8260409e0744e5f90829069efb1793918