v1.2.0

• core
  • Use new improved default namer to avoid API conflicts
• gpio
  • Removed scaling function from servo driver
  • Correct servo driver to pass along angle to adaptor to sort out implementation
• i2c
  • Refactored platforms and drivers to new I2C interfaces
  • Change to make I2C support more than one bus
  • Refactor drivers to support new optional params
• bb8
  • Added collision detection support and example
• beaglebone
  • Correct i2c buses to match actual mapping
• ble
  • Switch to using ble package for Bluetooth LE
  • Basic serial over BLE working with Arduino101 with StandardFirmataBLE
  • WIP on multiple simultaneous ble devices
• chip
  • Fixed chip XIO base address lookup
• digispark
  • Fix #288 by using pkg-config to locate libusb-compat includes
• firmata
  • Remove race conditions identified in Firmata client
  • Correct error in I2C reads not listening to board events
• mqtt
  • Add driver for syntactical sugar around virtual devices
  • Add SSL/TLS client options support
  • Fix #277 by adding SetAutoReconnect method to set Paho MQTT client
  • Change both 'On' and 'Publish' method function signatures to match Eventer interface
• nats
  • Add driver to make it easier to create virtual devices
• ollie
  • Added collision detection support and example
• parrot
  • Add ValidatePitch helper function for Parrot Minidrone, Parrot Bebop & ARDrone 2.0 to package
• docs
  • Fix #363 by using atomic.Value to protect current values used by multiple goroutines in drone examples
• test
  • Remove Golang 1.5 from TravisCI tests in prep for Golang 1.8 release