CoAP 1.1.0

* 1.1.0 - Rename obsoleted events and properties in CoAP Message - Mark as CLSCompliant - Add clean-up mechanism for blockwise transfer state - Add filter when notifying observers - Add send and receive events to IEndPoint - Add support for cancelling reject messages - Add support for cancelling blockwise transfer - Add support for blockwise transfers with NON - Update lazy initializing lock in a request to avoid locks if possible - Update collection classes for .NET 2.0 - Fix potential stack overflow in underlying UDP channel - Fix Message ID conflict - Fix incomplete cleanup when reregister a observation - Fix race condition when cancelling retransmission - Fix for parentless resources - Fix RTT for blockwise transfers - Fix success range for code constants * 1.0.0 - Add support for RFC7252! - Redefine compile symbols - Rename events and properties in CoAP Message - Allow random block request - Separate CoAP.Proxy namespace - Update Common.Logging to v3.0.0 - Fix incorrect link format serialization - Fix null reference in CoAPClient.Discover() - Fix a lot of others * 0.18 - Add support for CoAP-18 - Add new layers and stack structure - Add new server and client APIs - Add datagram channels for data transmission - Add full configuration - Improve UDP transmission with SocketAsyncEventArgs for .NET 4+ - Improve threading with TPL for .NET 4+ - Improve logging with Common.Logging - Fix lots of bugs * 0.13.4 - Fix potential breaks in UDP transmission - Diff assembly title with draft version * 0.13.3 - Add request.SequenceTimeout to override overall timeout in TokenLayer - Fix incorrect match of tokens in TokenManager * 0.13.2 - Add ICommunicator to represent communicators - Add ICoapConfig to pass initial variables (refs #8) - Add HTTP/CoAP proxy (experimental) - Add build for .NET 4.0 - Dispatch requests with thread pool in LocalEndPoint - Only timeout requests if SequenceTimeout is greater than 0 in TokenLayer - Move resources to separate namespace Resources, and add a TimerResource for timed observable resources. * 0.13.1 - Add timeout and max retransimit to each message - Enable log levels - Fix null reference to next block in TransferLayer * 0.13 - Update to CoAP-13 - Support drafts switching * 0.08 - Update to CoAP-08 - Support both IPv6/IPv4