Merge pull request #1128 from PX4/uavcan

.gitmodules

Makefile

ROMFS/px4fmu_common/init.d/4012_quad_x_can

ROMFS/px4fmu_common/init.d/rc.autostart

ROMFS/px4fmu_common/init.d/rc.interface

ROMFS/px4fmu_common/init.d/rcS

Tools/check_submodules.sh

makefiles/config_px4fmu-v2_default.mk

makefiles/nuttx.mk

makefiles/setup.mk

makefiles/toolchain_gnu-arm-eabi.mk

src/modules/uavcan/.gitignore

src/modules/uavcan/esc_controller.cpp

src/modules/uavcan/esc_controller.hpp

src/modules/uavcan/gnss_receiver.cpp

src/modules/uavcan/gnss_receiver.hpp

src/modules/uavcan/module.mk

src/modules/uavcan/uavcan_clock.cpp

src/modules/uavcan/uavcan_main.cpp

src/modules/uavcan/uavcan_main.hpp