This bug meant that setting a parameter in a parent class for a doubly
nested parameter group, where the parameter index in the parent class
is 4 or greater would actually set the first element in that parent
class.
At the moment only one parameter fits these narrow constraints - the
RCn_DZ element of the RC_Channel_aux class. So if someone set RC5_DZ
to 17 in ArduPlane it would actually set RC5_MIN to 17.
this stores the default value for all scalar variables in the var_info
table, which makes it possible to avoid storing default values in
eeprom. That allows us to oversubscribe the eeprom space with a much
lower risk of overrun.
* Eliminates recursive calls inside AP_Param.
This is important to Pat @ Galois, but not the project in general.
Recursion depth on these functions is bounded structurally using
existing nested group constructors (can't create loops in finite space)
and checked at init time
We would like to be able to use Vector3f as a parameter while exposing
the individual elements of the vector as MAVLink parameters. This
change to AP_Param makes that possible, by giving AP_Vector3f a dual
personality
adding a idx element to the GroupInfo will make it less likely that a
developer will change the IDs of group elements, and make it easier to
see that these IDs are important for identifying a variable in EEPROM
The header packing has changed to make it 24 bits on all platforms,
which allows us to lower the EEPROM variable max size to 1024 bytes
again