v0.17 firmware (stable)

Minla firmware v0.17 (stable): minla_v0.17_firmware.dfu

Notes:

• fixed bug in Naza GPS communication code (sometimes Naza GPS data could not be read for a substantial period of time and sometimes it could lead to minla reset to restore GPS communication). 

v0.16 firmware (stable)

Minla firmware v0.16 (stable): minla_v0.16_firmware.dfu

Notes:

• include tested improvements from minla firmware 0.15
• minor bugfixes