Update CHANGELOG.md

Update IXWebSocketVersion.h

Update CHANGELOG.md

Update IXExponentialBackoffTest.cpp

Feature/version 11.3.2 (machinezone#329)

* mbedls system certs

* missing curly brace ...

* windows uwp for appveyor

* try again uwp

* bump version

* keep using local cacert.pem in unittest

* appveyor back to normal

* remove appveyor file

Co-authored-by: Benjamin Sergeant <bsergeant@mz.com>

Fix mbedtls-3.0 problem (machinezone#322)

* Fix mbedtls-3.0 problem

This cause CI to fail on macOS.

See this migration guide => https://github.com/ARMmbed/mbedtls/blob/development/docs/3.0-migration-guide.md

* cmake change find header file

* define macro for mbedtls >= 3

* update api call

* Update IXWebSocketVersion.h

* Update CHANGELOG.md

(websocket client + server) WebSocketMessage class tweak to fix unsaf…

…e patterns

(Windows) move EINVAL (re)definition from IXSocket.h to IXNetSystem.h (…

…fix machinezone#289)

(cmake) install IXUniquePtr.h

(ssl + windows) missing include for CertOpenStore function