Initialize pointer members to NULL to avoid illegal reference

mBitmap and mTexture is not initialized to NULL which causes
illegal address access when it fails to be created from
oversized bitmap.

Change-Id: Iea54bec8788bc5f3a10040fdb43f416c0d41a14c
remove unused navbar/navring targets

PS2: comment out torch until CM's get's implemented

Change-Id: Iff37b739bbfe8608d133e8437581a0e4ce9e3e9b
Merge "Initialize pointer members to NULL to avoid illegal reference" into kk44
Merge "remove unused navbar/navring targets" into kk44