Raised core revision

Ignore-this: 8ca348e657186c48b8baf6b23b56c7a7

darcs-hash:20140210135624-56b4d-d18c6fac369f009483396a17c4ea3695c3f47d2b
Fixed instantiating NotificationCenter

Ignore-this: b334a7a96af30743e3ee895ca007aed7

darcs-hash:20140210150147-56b4d-532b129ad3dbc9157974f15df9f995ddb72fc9b9
Fake ICE gathering states since we might get them too early

Ignore-this: 745d1b8893df772413964f534ec4aff7

darcs-hash:20140211112304-56b4d-d927503a7bd3a1aff65809f8fb5e30c964b93503