Paparazzi 5.6.0_stable
======================

Stable version release.

- compile/run paparazzi in a docker container
  [#1272] (https://github.com/paparazzi/paparazzi/pull/1272)
- multimon: fix compilation with gcc 5.x
  [#1276] (https://github.com/paparazzi/paparazzi/pull/1276)
- arch/linux: replace mcu event polling with threads
  [#1277] (https://github.com/paparazzi/paparazzi/pull/1277)
- ardrone2: make UART1_DEV changeable from airframe file
- optitrack/natnet: update to version 2.7
  [#1275] (https://github.com/paparazzi/paparazzi/pull/1275)
  [#1284] (https://github.com/paparazzi/paparazzi/pull/1284)
- link/GCS: fix LINK_REPORT and display of link status in GCS
  [#1279] (https://github.com/paparazzi/paparazzi/pull/1279)
- GPS: add hmsl to GPS_LLA message
  [#1282] (https://github.com/paparazzi/paparazzi/pull/1282)
- modules: set nice level for viewvideo thread
  [#1283] (https://github.com/paparazzi/paparazzi/pull/1283)
- arch/linux: Rename uart/udp_transmit to uart/udp_put_byte
  [#1285] (https://github.com/paparazzi/paparazzi/pull/1285)
- GPS: NMEA parser fixes
  [#1287] (https://github.com/paparazzi/paparazzi/pull/1287)
- modules: viewvideo, fix image path
  [#1289] (https://github.com/paparazzi/paparazzi/issues/1289)
- simulator: FlightGear visualization using native-fdm for NPS
  [#1290] (https://github.com/paparazzi/paparazzi/pull/1290)
- rotorcraft: INDI stabilization updates
  [#1292] (https://github.com/paparazzi/paparazzi/pull/1292)
- boards: add support for ELLE0
  [#1294] (https://github.com/paparazzi/paparazzi/pull/1294)
- arch/linux: uart: fix crash if device does not exist
  [#1299] (https://github.com/paparazzi/paparazzi/pull/1299)