added test case for adding a second stream to a running call and renegotiate
Fix offer/answer order
Implement and test extmap.
Fix potential UAF set up by RemoveAttribute.
Merge pull request #121 from docfaraday/multistream_unit_tests

Implement and test extmap.
Remove some MOZ_CRASH that were unneccesary, and convert some others to
MOZ_ASSERT.
Merge pull request #122 from docfaraday/multistream_unit_tests

Remove some MOZ_CRASH that were unneccesary, and convert some others to
ICE checks pass for audio
Merge pull request #123 from ekr/MS_setup_ice

Wire up ICE. ICE now connects at least in trivial cases.
Use -Werror if configured to do so.
Get signaling_unittests to run all the way through without crashing.
Wire up (some of the) offer options, get more of signaling_unittests
passing.
Merge pull request #124 from docfaraday/multistream_unit_tests

Multistream unit tests
fixed compiler errors and warnings
Merge pull request #125 from nils-ohlmeier/renegotiation

added test case for adding a second stream to a running call and renegot...
Get a bunch of test cases passing in signalling_unittests. Still needs
the media stuff wired up.
Tiny ws fix.
Laying groundwork to surface fmtp better.
Merge pull request #127 from docfaraday/multistream_unit_tests

Multistream unit tests
Merge pull request #120 from nils-ohlmeier/multistream

fixed sctpmap memory leak (issue #118)