sensors: support for Futaba RC failsafe
commander: bug fixed in failsafe
sensors: code style fixed
Merge branch 'master' into rc_failsafe
PX4IO upgrade improvement
mpu6000: disable interrupts during initial reset

this seems to avoid a problem where the mpu6000 doesn't startup
correctly if other devices are transferring at the same time.
Enable DMA on UART8
Removed whitespace
Merge pull request #505 from PX4/rc_failsafe

Futaba RC failsafe support
Merge branch 'master' into vector_control2
multirotor_pos_control: seatbelt mode fix
multirotor_pos_control & mc_att_control_vector: singularities handling improved