Squashed commit of the following:

commit de99ae4a523ff5ec40b47071f22fdde1a4b2a0bf
Author: Andreas Huber <andih@google.com>
Date:   Thu Dec 2 13:18:40 2010 -0800

    Scan for sync words to find H.264 frame/AAC frame boundaries if PES packets do not start with them.

    Change-Id: If2861982ecb3006fac806105dbfcd1d43c2a4205

commit be23791ff0d037aa7073589cdc8bfc362e1c281d
Author: Andreas Huber <andih@google.com>
Date:   Thu Dec 2 13:12:39 2010 -0800

    Properly expand relative key URLs and strip surrounding quotes in the M3UParser.

    Change-Id: I013a6d83a64f095d090e5c7730298bdac7d03ab4

commit 0f1d8f65effe0cc42a265dd91d8b91dce6534325
Author: Andreas Huber <andih@google.com>
Date:   Thu Dec 2 13:11:27 2010 -0800

    Ugly hack that assumes that any http url containing "m3u8" refers to an httplive stream.

    Change-Id: I05d7bbc5dab0f9822558122b5b9dc2a109ed8518

commit 255f0d5cdb1072ecd66b47ee614bf574f1388e5a
Author: Andreas Huber <andih@google.com>
Date:   Thu Dec 2 13:10:56 2010 -0800

    Add one more mimetype "application/x-mpegurl" to identify httplive playlists.

    Change-Id: I63fd3b8c2539c9ee23c077df533157af78b10863

Change-Id: I135687383009dbe32d690c9ba8dea60159adc616