- Jenkins compile drop arch until container is updated and maintained
 - clang-tidy disable for now, the new version isn't respecting the existing configuration

    - jMAVSim in PX4/Firmware (3a7deefe): https://github.com/PX4/jMAVSim/commit/5150bbab6ea3e13907d2ff9eadd2c293d2477d49
    - jMAVSim current upstream: https://github.com/PX4/jMAVSim/commit/00bdf6d92b6a8678f5b683a3ebca9e52e88cb5ce
    - Changes: https://github.com/PX4/jMAVSim/compare/5150bbab6ea3e13907d2ff9eadd2c293d2477d49...00bdf6d92b6a8678f5b683a3ebca9e52e88cb5ce

    00bdf6d 2019-01-21 Beat Küng - jMAVLib: update submodule

Because $sitl_command contains quotes

 * this should fix the CI failures where we intermittently saw SIGABRT. (fixes #11144)

This should fix:
- HITL regression (Init MAVLink forever).
- Starting using default arguments.

    - sitl_gazebo in PX4/Firmware (1f9b8333): https://github.com/PX4/sitl_gazebo/commit/c90e8ad2b27b95dc0b4c45b346509477c5fa593d
    - sitl_gazebo current upstream: https://github.com/PX4/sitl_gazebo/commit/e945745021a74ae45695a624dfc114a5c7bbd6bc
    - Changes: https://github.com/PX4/sitl_gazebo/compare/c90e8ad2b27b95dc0b4c45b346509477c5fa593d...e945745021a74ae45695a624dfc114a5c7bbd6bc

    e945745 2018-12-26 Julian Oes - worlds: fix rate for tailsitter and plane
46a3d27 2018-12-14 Jörg Schmidt - Fix bug in groundtruth altitude calculation

Now that this is merged to master in jMAVSim.

This is just because the branch got merged.

This should fix a race because the use of future/promise wasn't done in
a thread-safe way.

An include was missing.

This fixes a HITL bug and uses promise/future instead of sleeping.

This brings build fixes for Gazebo 7.

This fixes all world files at 250 Hz simulation rate.

This brings support for TCP and lockstep.

This adds the env variable PX4_SIM_SPEED_FACTOR to set the speed factor
to run SITL at.

This switches from UDP to TCP to connect to jMAVSim.

This should be enough for now, especially when we want to raise the
speed of the simulation.

This adds the argument -f for a speed factor to speed up the simulation.

   Delete auto generated vars, and others that were missed.

 - fixes #10972

    - sitl_gazebo in PX4/Firmware (99c225dd): https://github.com/PX4/sitl_gazebo/commit/7c97eeae139d86b3747ea877d8067fb3180dc4f1
    - sitl_gazebo current upstream: https://github.com/PX4/sitl_gazebo/commit/d08eb5b22d3edfb7a740c883b06f895a173b5519
    - Changes: https://github.com/PX4/sitl_gazebo/compare/7c97eeae139d86b3747ea877d8067fb3180dc4f1...d08eb5b22d3edfb7a740c883b06f895a173b5519

    d08eb5b 2018-11-27 Julian Oes - Update opencv includes

    - sitl_gazebo in PX4/Firmware (dcd12b5f): https://github.com/PX4/sitl_gazebo/commit/5a50cb9a52737522b28abf14ce15b57de8ff2695
    - sitl_gazebo current upstream: https://github.com/PX4/sitl_gazebo/commit/7c97eeae139d86b3747ea877d8067fb3180dc4f1
    - Changes: https://github.com/PX4/sitl_gazebo/compare/5a50cb9a52737522b28abf14ce15b57de8ff2695...7c97eeae139d86b3747ea877d8067fb3180dc4f1

launch script for jmavsim failed to start if there were any spaces in
paths, string handling in paths was improved and tested.