easier to view in MP

this makes graphing mode changes easier

this makes graphing mode changes easier

stops us logging duplicate messages

used to help GPS logging

Plane : AP_L1_Control : Replaced division by constants with multiplies and adjusted default L1 period to 25 seconds

this should reduce the tendency of aircraft to nose down hard on
initial launch at high g

Lesser functionality than limits but saves more than 150 bytes and it
works

last 4 channels are on the FMU pins

needed for full 12 channel support on PX4

moved telemetry port to /dev/ttyS2 to free PWM outputs on FMU

first 8 on IO board, next 4 on FMU outputs

we have 12 channels on PX4FMU+PX4IO

We need to allow yaw_factors to be floats in the add_motor method

update_commands was being run in the medium_loop counter but it is
easier to understand the flow of the code if it is consolidated along
with other autopilot calls.

used to generated
http://firmware.diydrones.com/Tools/MissionPlanner/upgrade

was incorrectly defined as an AP_Int16 parameter

this fixes bool behaviour to match C99, which some of the APM code
assumed, including simple mode in ArduCopter

we should return the base type, not the parameter, or callers could
use set on the result