Merge pull request mavlink#624 from mavlink/pr-update-lib

Update to mavsdk_server v1.4.17

Merge pull request mavlink#603 from mavlink/pr-update-server

Update mavsdk_server to v1.4.16

Merge pull request mavlink#601 from mavlink/pr-update-server-1.4.15

Update mavsdk_server to 1.4.15

Merge pull request mavlink#593 from mavlink/pr-tune-fix

Update mavsdk_server to v1.4.14

Merge pull request mavlink#569 from mavlink/pr-update-server

Bump mavsdk_server version to v1.4.13

Merge pull request mavlink#557 from mavlink/pr-fix-serial

Use mavsdk_server v1.4.12

Merge pull request mavlink#544 from mavlink/pr-fix-docs

Require protoc-gen-mavsdk 1.1.1

Merge pull request mavlink#542 from mavlink/pr-update-mavsdk-server

Update mavsdk_server version, bump to Python 3.7+

Merge pull request mavlink#494 from mavlink/pr-bump-v1.4.4

Bump MAVSDK version to v1.4.4

Merge pull request mavlink#485 from mavlink/update-to-mavsdk-server-1…

….4.2

Bump mavsdk_server to 1.4.3