pymavlink: move maintainence to submodule

.travis.yml

APM_Mavtest/APM_Mavtest.pde

APM_Mavtest/Makefile

CMakeLists.txt

DFReader.py

README.md

README.txt

__init__.py

cmake/.gitignore

cmake/WELCOME.txt

cmake/arkcmake/DefineCMakeDefaults.cmake

cmake/arkcmake/DefineCompilerFlags.cmake

cmake/arkcmake/ExternalProjectWithFilename.cmake

cmake/arkcmake/MacroCheckCCompilerFlagSSP.cmake

cmake/arkcmake/MacroEnsureOutOfSourceBuild.cmake

cmake/arkcmake/updateArkcmake.py

cmake/mavlink.bmp

cmake/mavlink.png

config.h.in

dialects/__init__.py