Copter: version to AC3.1.1
Copter: Release notes for AC3.1.1
Git : ignore eclipse project files
Git: remove old eclipse project file
Git : ignore eclipse project files
Copter: firmware to AC3.1.2-rc1
Copter: firmware to AC3.1.2-rc2
Copter: firmware to AC3.1.2
Add support for Porcupine Electronics LR4 + Fluke 414D, and set as default sonar rangefinder for ArduCopter
Don't set analog scaler if using UART