Ammended pin assignment for EAGLE_A3Pro, rebuild targets
Merge https://github.com/jfitter/FlightStab

did not merge in the hex files. will be rebuilding after the next change.
rebuilt jfitter's changes and added deadband filter for master_gain.

- update target files (a3pro pin mapping update, and master_gain deadband filter)
- move pdf file to Docs/EagleA3Pro Guide.cdr
fixed memory corruption due to bad array bounds check in start_next_adc (6 vs 8).

also added const array size definitions for adc_portc, din_port and rx_port.
Added support for new TGY160A program box

http://www.hobbyking.com/hobbyking/store/__17978__Turnigy_160A_1_8th_Scale_Sensorless_ESC_Programming_Box.html

this box has 16K (vs 8K for the squastar and dlux).

- bootloader image is at AVRootloader\AVR\default\AVRootloader_TGY160A.hex
- program box image is at Builds\20140210_TGY160A.hex

steps:
- erase the chip via ISP
- set fuses to lo=0xF7 hi=0xDF ext=0xFC via ISP
- flash AVRootloader_TGY160A.hex via ISP
- use avrootloader.exe to flash 20140210_TGY160A.hex via one-wire interface
Merge pull request #2 from noobee/master

pull request to pick up changes from my master branch to yours.