Increase rc time

Quad was not auto launching. Changes 6853a0a0fd4eb26bbf42f3da9780cd9daeefb53d and 52db4c4af1be93d121f7a8b3374da2654a3ba1f3 fixes it. The other changes are just button changes that aren't merged into master yet.

Changed RC Override to one second and set it to send a value in the valid range of the RC calibrated PWM range.

Changed 1 in call to super.sendRc() to .1 as this number when put in the formula in that method gives a PWM (RC controller signal number) value of 1,555 instead of 2,050. 2,050 is outside the calibrated range for PWM throttle on the quad we were using Friday and most likely is discarded.

This has been tested. It allows auto takeoff.