Navigator: Get rid of warnings first
fw_pos_control_l1: indentation only
fw_pos_control_l1: use double everywhere for lat and lon
TECS: use constant from geo
TECS: warning fixes
fw_pos_control_l1: warning fixes
fw pos ctrl: initialize uorb structs in initialization list
Merge remote-tracking branch 'px4/beta' into fix_mission_dive

Conflicts:
	src/modules/navigator/navigator_main.cpp
l1_pos_control: prevent NaNs for roll setpoint
l1_pos_control: set gndspeed_undershoot to 0 in loiter
l1_pos_control: fix stupid 'if not' mistake
Merge pull request #700 from PX4/fix_mission_dive

Fix mission dive