this sends out the GPS init strings in 16 byte chunks to avoid causing
timing glitches when no GPS is attached

Reworked the PPM decoder (i did forget the sync symbol pre-pulse)
Splitted pre-pulse and pulse width variable for better reliability and easier processing

Also removed commented-out block of code from navigation.pde.

Provided by Leonard Hall.

Also removed large unnecessary comments.

Provided by Leonard Hall

this allows pin numbers to be changed at runtime

use an array of channels

this caused the example to fail

* Also a small change in FastSerial/vprintf.cpp, which duplicates the
  PSTR definition
* Won't effect others using earlier versions of avr-gcc

Base algorithm added for channel count auto detection in the decoder himself.
Replaced the #define for PPM_CHx_CHANNELS by PPM_CHx_MAX_CHANNELS.
Channel count #define was not needed anymore thanks to the channel count auto detection.
Channel detection post processing to do.

Signed-off-by: LeonardTHall <LeonardTHall@gmail.com>

Auto Switchover algorithm with primary receiver switchback.
Force switchover channel moved to channel 9
Manual modifications.

Changes included:
Removing earth frame roll_rate_trim, pitch_rate_trim and yaw_rate_trim.
Switch ACRO mode to use YAW_ACRO instead of YAW_HOLD.
Changed YAW_ACRO to use stabilize yaw when axis_enabled.
Reset ACRO roll, pitch and yaw targets to current attitude when first entering ACRO.

Dual input PPM decoder rework
flags for frame and channel error control
decoder algorithm rework

Work in progress
adding a channel pre pulse lengt #define for each PPM mode
dual channels PPM input capture interrupt algorithm

ArduPlane: added BATT_VOLT_PIN and BATT_CURR_PIN parameters to allow support for new 3DR IV battery monitor

ArduCopter: added BATT_VOLT_PIN and BATT_CURR_PIN parameters to allow support for new 3DR IV battery voltage and current monitor

Also added some detail to WP_Speed_Max parameter.

Some rework and cleaning for #define stuff

Work in progress on a new Redundancy dual PPM sum mode for PPM encoder.

- New library PPM_Encoder_v3.h and new manual manual_v3.txt

- New format conversion capability between input and output PPM frame timings and channel count.

This will be experimental until heavily tested. The main goal is to allow the use of low cost satellite receivers in a high safety setup, and allow a new teacher / student RC mode without link between the two pilot transmitters.

Reduced parameter default value for TradHeli.

Small cleaning removing space in filename.

This is the Jeti Telemetry protocol. Common in Europe for RC multicopters telemetry through 2.4 Ghz Jeti Duplex links.

A small test