Save session start time when media stream did timeout

Ignore-this: 21379dfc09a5f5fed52572a5af03b779

darcs-hash:20100312161939-56b4d-0a45d73b2bb65b79b2fa8fb7158ba8a811520aa1
Refactor ICE status notifications

Ignore-this: b0430d2d6f8adc5e8e8e74c1b08e4560

darcs-hash:20100312164401-56b4d-e8a55acbfcf431072f117fe5204e38c0573c93d1