New Feature
- [CPPBRTEC-253] - OrderDbListener should be added
 - [CPPBRTEC-243] - New members of FirmOrderBookListener
 
Improvement
- [CPPBRTEC-252] - BREAKING CHANGE: FirmOrderBookListener::onFirmOrderBookUpdate should be removed
 - [CPPBRTEC-247] - Environment variables OAPI_TIMEOUT and OAPI_DATATIMEOUT should be set
 - [CPPBRTEC-246] - OAPI_TIMEOUT and OAPI_DATATIMEOUT should be reported in the Handler's log file
 - [CPPBRTEC-242] - Supported session types should be described in the Programming Guide