* Guard against NullReference while creating HostContext
* Throw on IOUtil loading object if content is empty or object is null
* removed unused dependency
* Changed exceptions to ArgumentNullException and ArgumentException
* fixed my mistake on LoadObject
* fixed tests
* trigger workflows
* trigger workflows
* encode files using utf8
* terminate the runner on deprication message
* added TaskAgentVersion exception to catch deprication
* AccessDenied exception with inner exception InvalidTaskAgent
* Access denied exception in program and in message listener
* Fixed copy
* remove trace message from message listener
* Runner service exit after consecutive re-try exits
* Rename failure counts and include reset count on runner listening for jobs
* Changed from graceful shutdown to stopping=true
Nikola Jokic