Update Podspec in preparation for 2.0.0.beta1 #148
LongPolling and AutoTransport Updated for SignalR Server 2.0.0
2.0.0 Server Compatible

Still have a number of issues to work out around reconnect and
disconnects for all transports.
Also need to work on defining the best public api at the connection
level.
Fix ChunkBuffer Tests
Update Podspec to reflect current state of 2.0.0 compatibility
Merge pull request #156 from DyKnow/feature-2.0.0.beta1

Feature 2.0.0.alpha1