Fix memory leak in websocket shutdown.

v0.4.21

Release the websocket request upon websocket shutdown. (#114)

Client bootstrap API changes

Adapt to API changes in aws-c-io v0.4.20

v0.4.19

Some uncommon-path memory leaks

v0.4.18

Memory leaks and crash fixes

v0.4.17

• Fix for double completion crash

Proxy Options Unitialized Memory Fix

Whoops

Memory tracing updates

Fixed tests to match tracer API updates (#102)

* Fixed tests to match tracer API updates

Memory tracing updates

Updated tests to use mem tracer instead of test allocator (#101)

* Updated tests to use mem tracer instead of test allocator

Topic Copying

Unsubscribe and publish now behave like subscribe, in that they copy the topic string internally, so the caller doesn't need to keep it alive for the duration of the event.

Also fixes an assert in topic_tree when attempting to unsubscribe from a topic that doesn't exist.

web sockets now on by default. Proxy configuration now supported.

v0.4.12

MQTT_WITH_WEBSOCKETS is ON by default (#99)