v1.8.5-20161020 Release

This is a second beta release of Adafruit MicroPython firmware. Changes include:

• Sync with upstream micropython/master v1.8.5 code.
• Documentation improvements to support automated doc generation from code.
• urandom pseudo-random number generation module enabled.
• framebuf framebuffer module enabled.
• SSD1306 driver removed and put in separate GitHub repository (also fixed to work with hardware I2C interfaces): https://github.com/adafruit/micropython-adafruit-ssd1306
• feather_m0_adalogger board definition added based on feather_m0_basic. Future work coming to support the SD card with SPI, etc.

See this guide to learn how to load and use the firmware: https://learn.adafruit.com/micropython-for-samd21