- clarify license agreement
- Improve robustness of low-level USB stack 
- better behavior for loading cdll from command line 
- fix calibrateFromPoints method
- Verify that the YAPI shared library is present during initialization
- fix 5 seconds timeout on YAPI.FreeAPI() when connected through the network
- fix value notifications that were dropped on plugged devices
- fix possible 100% CPU load when the API was connecting to an IP Hub
- fix potential segmentation fault when unplugging device in bootloader
- fix memory leak
- remove some unnecessary file of VisualStudio projects
- minor fixes for mono compatibility
- fix get_friendlyName() for Python 3.x