Squashed commit of the following:

commit 543e192bf2ae13f573dc4c4e53b239ed4ea00e81
Author: Andreas Huber <andih@google.com>
Date:   Thu Dec 3 11:33:57 2009 -0800

    stagefright now acts as the OMX Master, vendors supply their own plugins through libstagefrighthw. In OpenCore-enabled builds we now sit on top of PVMaster...

commit 3cbfdbd9cecadbb77b63125c62883bf1065884fe
Author: Andreas Huber <andih@google.com>
Date:   Wed Dec 2 12:39:07 2009 -0800

    More OMX infrastructure, stagefright is now taking over the OMX Master, multiplexing all contributing OMX implementations under a common interface.