Squashed commit of the following:

commit 333057b355f8c260c549553b9a0634755c838b6a
Author: Andreas Huber <andih@google.com>
Date:   Fri Nov 13 15:35:48 2009 -0800

    Some more tweaks to AVC encoding on sholes.

commit 9981d0ee52ec5b8b0182aae733d1571e3ebb8390
Author: Andreas Huber <andih@google.com>
Date:   Thu Nov 12 16:36:57 2009 -0800

    Support for avc encoding, including sholes specific tweaks to pick the right colorspace for the camera to not require transcoding.

commit 5ba0ebbbd4efca51f3ae1f60e2ca31e7d2cf136d
Author: Andreas Huber <andih@google.com>
Date:   Wed Nov 11 09:50:03 2009 -0800

    Enable actual (camera) video-only recording using h.263 or mpeg4 encoding.

commit 3fd59c3526a37fe7c696f4a978925d1831c09313
Author: Andreas Huber <andih@google.com>
Date:   Tue Nov 10 14:57:48 2009 -0800

    Allow switching between the PV recorder implementation and one supported by stagefright.

    This is controlled through the property "media.stagefright.enable-record".