4.0.3: Miscellaneous enhancements and fixes
Release 4.0.3 collects together a number of new features and bug fixes. Notably:
#126 Remap I2C1 on STM32F1
#134 STM32F10X MD support
#129 Support HSI internal clock when available on the MCU
#128 Implement support for the internal flash peripheral
#124 Upgrade to v1.5 of the standard peripheral library for the F0.
#116 Provide async version of tcpConnect().