stream.hds: Check for height aswell when parsing manifests.
stream.hds: Only autoadd the hdcore param to akamai streams.
stream.hds: Don't use the movie identifier.
cli: Fix back-slash issue in --player-args.

Fixes #218.
Merge remote-tracking branch 'chrippa' into pv

Conflicts:
	src/livestreamer/stream/hds.py