Fingerprint parse stuff.
Wire up protocol for m-lines, and wire up accessors for setup.
Add some more accessor code.
Fix double-increment.
Don't create an empty fingerprint container if we have some
fingerprints, none of which we support. Also, flesh out the setup test
case.
Merge pull request #58 from adamroach/attributes

I'm not sure what I did here.
Add an audio section
Checkpoint
Checkpoint
Merge pull request #59 from ekr/MS_add_streams_to_offer

Ms add streams to offer
Merge pull request #55 from docfaraday/multistream_unit_tests

Multistream unit tests
stuff
Goodbye, a=0:0