1.21 2014-06-24
Fixed an issue in RH_Serial where characters might be lost with back-to-back frames. Suggested by Steve Childress.
Brought previous RHutil/crc16.h code into mainline RHCRC.cpp to prevent name collisions with other similarly named code in other libraries. Suggested by Steve Childress.
Fix SPI bus speed errors on 8MHz Arduinos.