- sitl_gazebo in PX4/Firmware (6c34407d): https://github.com/PX4/sitl_gazebo/commit/9d512af0075659f0ace91ec0e2f8c8a170f911fb
    - sitl_gazebo current upstream: https://github.com/PX4/sitl_gazebo/commit/1264b74493cd2f362d852530bcc7423a013f2151
    - Changes: https://github.com/PX4/sitl_gazebo/compare/9d512af0075659f0ace91ec0e2f8c8a170f911fb...1264b74493cd2f362d852530bcc7423a013f2151

1264b74 2018-09-30 TSC21 - gazebo_motor_failure_plugin: clean up and fix for Gazebo 9
77141e7 2018-09-29 TSC21 - Travis: add naming for jobs within the build matrix
e46f82a 2018-09-29 TSC21 - add new 18.04 Melodic build
5b93919 2018-09-29 TSC21 - Travis: update ROS docker container

to fix Cygwin upload. It failed silently but when catching it prints
"non-standard baudrates are not supported on this platform".
Discussion about platform independet FTDI detection is in issue #10429.

This uses the systems default shell:
- Ubuntu: dash
- Fedora: bash

Since bash is invoked via /bin/sh, it operates in POSIX mode:
  https://tiswww.case.edu/php/chet/bash/POSIX

- remove '# Ignore the expand_aliases command in zshell.'
  Not needed because the shell operates in POSIX mode
- [[ is bashism -> use [
- autostart_files=( $autostart_file_match )
  is not supported in dash, so use 'ls'
- shellcheck runs the dash flavor, since dash is a minimalistic shell.

Tested on dash & bash.

- NuttX supports both versions
- POSIX shell only supports '='

Can be reverted if needed later on...

This checks if we are on macOS and if we have Java 8 installed. If yes,
it falls back to Java 8 by setting JAVA_HOME.

This avoids https://github.com/PX4/jMAVSim/issues/81

This should resolve the issues with Java 9/10.

I sometimes start jmavsim independently from px4, and in that case jmavsim
should not be killed. These are the commands:
./Tools/jmavsim_run.sh
make posix none

    - sitl_gazebo in PX4/Firmware (031885f9a90e70cd8d8aa22c774dfca1bd0c8dfb): https://github.com/PX4/sitl_gazebo/commit/821c55ca714d7acf93d8ed96af71237b8437e488
    - sitl_gazebo current upstream: https://github.com/PX4/sitl_gazebo/commit/9d512af0075659f0ace91ec0e2f8c8a170f911fb
    - Changes: https://github.com/PX4/sitl_gazebo/compare/821c55ca714d7acf93d8ed96af71237b8437e488...9d512af0075659f0ace91ec0e2f8c8a170f911fb

    9d512af 2018-09-12 Lorenz Meier - Update gazebo_wind_plugin.cpp
46d0be1 2018-09-12 Lorenz Meier - Update Wind.proto
14f09ff 2018-09-03 Elia Tarasov - fix compilation for gazebo version equal or greater 9
de86d7b 2018-08-31 Elia Tarasov - use template class vector3d from ignition::math
f3cba29 2018-08-31 Elia Tarasov - enable wind plugin

 - needed for cmake packaging

It seems that the oneline to find the process ID of any running jMAVSim
instance was not working correctly.
1. On Linux, the name of the process does not contain Simulator but
   jmavsim_run.jar. Also, it triggers incorrectly, if you have opened
   Simulator.java using the command line :).
2. The cutting to get the PID at the end does not work as intenteded and
   gives the username instead of PID, at least on Arch Linux. Using awk
   should fix this.

Not needed anymore

The high frequency acceleration noise levels in the gazebo models and also seen on some hardware is causing the IMU vibration check warning to fail.

The thresholds have been lifted and the reporting improved to make it clearer which sensor noise is causing the failure.

    - sitl_gazebo in PX4/Firmware (7f41ead2): https://github.com/PX4/sitl_gazebo/commit/c1ca87e37b831cd4b64ac642957e701875738909
    - sitl_gazebo current upstream: https://github.com/PX4/sitl_gazebo/commit/821c55ca714d7acf93d8ed96af71237b8437e488
    - Changes: https://github.com/PX4/sitl_gazebo/compare/c1ca87e37b831cd4b64ac642957e701875738909...821c55ca714d7acf93d8ed96af71237b8437e488

    821c55c 2018-08-20 Elia Tarasov - remove unused destination socket address
37faf25 2018-08-20 Elia Tarasov - remove undecalred member function
d5ca1d4 2018-08-20 Elia Tarasov - fix default QGC udp port initialization

Use './Tools/run-shellcheck.sh ROMFS/px4fmu_common' to run it.

This also removes the HIGHRES_IMU mavlink stream to the GCS. I don't see
why it's needed and it adds noticeable CPU load.

Move ros logs dir so that .ulg files are not in the same directory
(mission_test.py:: get_last_log() fails otherwise)

This was printed for all submodules.