Changelog for AWS IoT Over-the-air Update Library

#450 Remove assertion check to make out-of-order packet work
#449 MISRA C:2012 compliance updates
#443 Removal of const for pData
#441 Add user callable agent cycler
#440 Keep event/callback functions to avoid access NULL
#439 Self timer restart bug fix
#436 Update OtaPalWriteBlock_t comment with a note about returning from the function and exception condition.
#433 Replace mq_send/mq_receive with mq_timedsend/mq_timedreceive.
#432 Change default signature size to 384 to support RSA-3072
#436 Fix the length judgement in custom job, and move OtaAppCallback to make sure job ID is valid.
#428 Ignore duplicate packet and wait for valid file blocks
#427 Add new event for application callback when no active jobs are available
#426 Send status update on first block received
#419 Move cleanup of job id to after OtaAppCallback
#413 Clear timers in shutdown and suspend

#232 Add updater version to the status details when job succeeds
#216, #213, #226, #234 Misc fixes to remove compiler warnings and resolve build failures on certain platforms.
#200 Add type cast for logging variable of type size_t

v3.0.0 (March 2021)

The AWS IoT Over-the-air Update library is now generally available.
#154 Update Ota_Shutdown API. Ota_Shutdown now takes a parameter unsubscribeFlag which indicates if unsubscribe operations should be performed from the job topics when shutdown is called.
#174, #186 Add support for different filetypes. configOTA_FIRMWARE_UPDATE_FILE_TYPE_ID config can be used to define the default firmware filetype id.

#186 Add OtaAppCallback for job and update completion.
#178, #164, #160 Update custom job and active job logic flow.
#177 Add code example documentation for OTA APIs.
#155 Remove subscription from accepted topics of AWS IoT Jobs service. AWS IoT Jobs service publishes messages on response topics without needing devices to subscribe to response topics.
#183, #158, #157, #153 Other fixes to execution flow and improving logs.

This is a release candidate of the AWS IoT Over-the-air (OTA) Update library in this repository. You can use the OTA library with your chosen MQTT library, HTTP library, and operating system (e.g. Linux, FreeRTOS).