OSMF SVN

Update HTTPStreamDownloader class to correctly update the downloadBytesCount property.
- the property is updated on progress event and not on complete event

MLM change: OSMF will ignore the following attributes from the stream-level manifest:
bitrate, width, height, type, alternate, label, lang

Fixed Bug FM-1334: DRM does not work when using alternative audio tracks

Updated MLM parsing:
- <media> attributes: @bitrate, @width, @height, @lang, @label, @type, @alternate are only read from the top-level manifest
- <dvrInfo>, <id>, <streamType>, <mimeType> are only read from the top-level manifest

Fixed LBA - alternate audio URL bug (the URL was malformed)

[qe] adding integration tests for mlm

Fixed MLM bug: baseURL in stream-level manifest was being overridden by the manifest's location

[qe] integration tests update

Fixed Single Bitrate DVR Bug (the stream was considered live, even though <dvrInfo> was present)

Updated F4M parser to allow relative URLs to be composed with the baseURL / manifest location