add MDRIE
[channel9] Initial implementation (#1885)
[channel9] Cleanup
[channel9] Missing import in __init__
[channel9] Fix test description md5
Merge remote-tracking branch 'dstftw/channel9'

Conflicts:
	youtube_dl/extractor/__init__.py
Merge remote-tracking branch 'mc2avr/master'
[mdr] Simplify
release 2013.12.16.1