Merge commit 'dc209330cece9e680b7ae0677835e513f91c99f2' into cloud-android-current-release

Merges in changes from the master branch. Includes eliminating
generating MMX instructions, emulating Subzero intrinsics for ARM,
and floating-point filtering extension using glHint.

Change-Id: I98eadb7c8b48284f39b8f2933f31427f38bb286a