MAVLINK Adaptation for SKY9X (not working on 9xRPRO for now)

Hi,
my name is Adriano and i modified v2.13 to
compile for sky9x with MAVLINK protocol.
It is working and i kindly ask you can include
these very little mods in mainstream.

Thank you for all your great job


note: i use slackware-linux(64bit) and gcc 4.7.3 and it compiles OK :-)
i substitute with FRSKY only because compiling for SKY9X and 9XRPRO radio types (and pcb type is PCBSKY9X for both) i get:
opentx.cpp: In function 'void modelDefault(uint8_t)':
opentx.cpp:474:11: error: 'ModelData' has no member named 'mavlink'
opentx.cpp:475:11: error: 'ModelData' has no member named 'mavlink'

Do you have a better solution ?