Adding additional servo for flap,
Renaming 'rate' to 'throw' since this influences the percentage of usable servo movement.
presenting fw_rth_alt as a CLI option to make setting easier until configurator changes are made.
Merge pull request #208 from readerror67/fw-rth-update2

Rename pitch/roll rate to 'throw', presenting fw_rth_alt as a CLI option.
Style
Merge pull request #201 from readerror67/flap-fix

Adding additional servo for flap (fix)
Implement auto-reset of spektrum bind flag after power on with bind enabled.
new servo mixer added