mc_pos_control: camera pitch control implemented, manual/follow yaw controlled by flag in vehicle_control_mode
commander: don't beep if message is not understood
mavlink: implemented multicasting between mavlink instances (two options: forwarding: forward received messages from self to other mavlink instances, passing: send out messages received from other mavlink intances over serial
mavlink: in normal mode transmit position setpoint and roll-pitch-yaw-thrust setpoint
Merge pull request #810 from thomasgubler/mavlink_setpoints

mavlink: in normal mode transmit position setpoint and roll-pitch-yaw-thrust setpoint
Merge branch 'follower' into cam_control
mc_pos_control: camera control publishing fixed
commander: put unsupported warning back in place
mavlink: use LL_FOREACH
Send camera command to all, use own sysid
Merge remote-tracking branch 'px4/master' into mavlink_broadcast
mavlink: alwayspublish 8 outputs onmavlink: HIL_CONTROLS fixed to send all channels on multirotors
commander: set control_mode.flag_point_to_target for FOLLOW mode
mc_pos_control: camera control fixes
mc_pos_control: MPC_CAM_P_SCALE (camera pitch scale) parameter added
Merge branch 'follower' into cam_control
gps driver: fake mode: lower eph and epv values in order to convince the commander that the gps signal is valid
Merge pull request #813 from PX4/gps_fake_fix

gps driver: fake mode: lower eph and epv values in order to convince the commander that the gps signal is valid
Merge pull request #791 from PX4/mavlink_broadcast

Mavlink broadcast
mavlink: accessor for _mavlink_fd