manual control setpoint: rename variables
commander: use new manual control setpoint variable names
fw att control: use new manual control setpoint variable names
fw pos control: use new manual control setpoint variable names
mavlink receiver: use new manual control setpoint variable names
mavlink receiver: use new manual control setpoint variable names and fix sending of manual control setpoint mavlink message
mc att control: use new manual control setpoint variable names
mc pos control: use new manual control setpoint variable names
sensors: use new manual control setpoint variable names
Merge remote-tracking branch 'upstream/master' into manualcontrolrename

Conflicts:
	src/modules/commander/commander.cpp
	src/modules/fw_pos_control_l1/fw_pos_control_l1_main.cpp
	src/modules/uORB/topics/manual_control_setpoint.h
manual control setpoint: add comment about sign
Output a debug string is Invalid @ parameter #1

line 143 may be crash or buffer overflow. because the argument must is a pointer as char type  that and have a valid buffer
Update paramters for warnx()
navigator: Removed static where no static should have been used
mavlink: Removed static buffers where no static buffers where necessary
mkblctrl: Moved motor data struct into class
Reduce RAM footprint of HoTT driver, fix publication to contain ESC data
Start the data manager and navigator at the last moment to leverage their dynamic allocations to use smaller chunks of RAM
Reduce buffer sizes to reasonable quantities for UART
blinkm: Remove the barrage of static variables in mainloop, eating up RAM for everybody