in order to not constantly switch mag fusion mode in gusty winds.

    - nuttx in PX4/Firmware (31767b6b5aeb4293c2991dbfea6b810e34a34149): https://github.com/PX4/NuttX/commit/999c4357a220d9ea271475e74abd5d8ba080be27
    - nuttx current upstream: https://github.com/PX4/NuttX/commit/166d898c70141d7ddb179b5ead1c5ea726574411
    - Changes: https://github.com/PX4/NuttX/compare/999c4357a220d9ea271475e74abd5d8ba080be27...166d898c70141d7ddb179b5ead1c5ea726574411

166d898 2018-10-18 Daniel Agar - [BACKPORT] Merged in dagar/nuttx/pr-stm32_dma_per_spi (pull request #736)
0a5b1cb 2018-10-17 David Sidrane - [BACKPORT] Lampoo-master-spi-flash (pull request #735)

    - ecl in PX4/Firmware (bd71d1cd9e1e1d29f89351c43f879e6c49b727bc): https://github.com/PX4/ecl/commit/f240eaa5b089c50b957a3ab61aeb722ea57dccd9
    - ecl current upstream: https://github.com/PX4/ecl/commit/10a0fef7b7db749f5baf3384e9c900d3aa0e8140
    - Changes: https://github.com/PX4/ecl/compare/f240eaa5b089c50b957a3ab61aeb722ea57dccd9...10a0fef7b7db749f5baf3384e9c900d3aa0e8140

    10a0fef 2018-10-18 jie.zhang - EKF/control: remove unnecessary yaw_align update
8bbaf89 2018-10-17 Daniel Agar - EKF add new simple setIMUData() interface (#512)
e6cd6ef 2018-09-03 Paul Riseborough - EKF: Fix bug preventing  use of flow sensors without gyros
2c3a064 2018-09-18 Daniel Agar - README.md update Jenkins build status icon and url

removed px4_poll, something changed and broke the way I was using it. This has been tested successfully

 - start mavlink on network by default (port 14570)
 - start mavlink for TX2 companion by default

    - sitl_gazebo in PX4/Firmware (304e00f1): https://github.com/PX4/sitl_gazebo/commit/d1f0bd4367d1cab01c772bb593a3f750b2f7dce2
    - sitl_gazebo current upstream: https://github.com/PX4/sitl_gazebo/commit/3d80f63562c24c1537e1f8423ce649c99ebc15ea
    - Changes: https://github.com/PX4/sitl_gazebo/compare/d1f0bd4367d1cab01c772bb593a3f750b2f7dce2...3d80f63562c24c1537e1f8423ce649c99ebc15ea

    3d80f63 2018-10-16 Elia Tarasov - add missing dimension
4722a06 2018-10-15 Elia Tarasov - fix px4flow gyro orientation wrt camera
7e22adc 2018-10-15 Elia Tarasov - fix px4flow gyro sensor handling:
30337e7 2018-10-15 Elia Tarasov - add px4flow gyro sensor to px4flow jinja model
dcf2c95 2018-10-12 Elia Tarasov - add px4flow gyro sensor handling
0b4d4e3 2018-10-12 Elia Tarasov - replace integrated onboard gyro calculation by px4flow gyro sensor
df516e6 2018-10-11 Elia Tarasov - add check for NAN in case of no gyro is present
bbe2d67 2018-10-11 Elia Tarasov - send NAN in case of gyro absence
354e055 2018-10-11 Elia Tarasov - add default flag for gyro presence