versions. The API is now fairly stable but when new calls/features are added
they are listed here. Anything pre 0.2.x is ignored.
+**0.4.5**
+ * if only one spidev we default to it reguardless of number
+ * mraa_pwm_config_ms & mraa_pwm_config_percent functions added
+ * Uart C++ class added, adds python & node support
+ * galileo gen2 gpio modes supported
+
**0.4.4**
* prefix SPI mode with MRAA_SPI_
* added C++ adc bitness calls