ekf_att_pos_estimator: Default printing to off
mavlink mission item takeoff: read correct param for minimal pitch
Merge pull request #1013 from PX4/waypointminpitch

mavlink mission item takeoff: read correct param for minimal pitch
romfs: Added back mixer readme, now gets filtered out
Merge branch 'master' of github.com:PX4/Firmware
Merge branch 'master' into spi4
Fix SPI select on port 4 to use the right defines
Count devices on SPI4 / EXT from 1 as for the other buses