IOT SDK is now Generally Available!

Update readme for GA, and dependencies to latest crt. (#76)

* Update readme for GA, and dependencies to latest crt.

Feature complete IOT SDK.

Update tag for crt-cpp (#71)

* Update tag for crt-cpp

* Updated the dependency auto build.

Fix cmake build on some cmake versions,.

v0.1.3

Don't mark project as CXX or try_compile will fail on some cmake vers…

New features, stability improvements. Aws Auth bindings.

v0.1.2

Http API change + update to CRT v0.5.4 (#62)

Initial Release (stable given a few known issues)

Known bugs still in this release:

Unsubscribing from a topic not currently subscribed to causes a segfault
Destructing an Mqtt Connection that isn't disconnected causes an assertion.

Missing features:
Web sockets
Proxy support