Release: 2019.2
===============

Change list:
- Updated data rate for performance run. Now it will print data rate based on the size.
- remove BUG_ON, return proper error code instead
- Streaming mode: enable credit mechanism by default 
- Streaming mode: Do not read more than user supplied buffer size on C2H
- Streaming mode: Added support for Async-IO for both streaming and MM transfers
- fixed performance appliaction crash
