• Added support of libOpenCM3 framework for Nucleo F103RB board
  (issue #309)
• Added support for Espressif ESP8266 ESP-12E board (NodeMCU) (issue
  #310)
• Added support for pySerial 3.0 (issue #307)
• Updated Arduino AVR/SAM frameworks to 1.6.6 (issue #321)
• Upload firmware using external programmer via platformio run
  –target program target (issue #311)
• Fixed handling of upload port when board option is not specified
  in [platformio.ini]([issue #313])
• Fixed firmware uploading for nordicrf51 development platform
  (issue #316)
• Fixed installation on Mac OS X El Capitan (issue #312)
• Fixed project generator for CLion IDE under Windows OS with invalid
  path to executable (issue #326)
• Fixed empty list with serial ports on Mac OS X (isge #294)
• Fixed compilation error TWI_Disable not declared for Arduino Due
  board (issue #329)