Update transport docs and settings for changes#36913

Merged

Tim-Brooks merged 2 commits intoelastic:6.xfrom Tim-Brooks:backport_settings_docs

Dec 20, 2018

+43-35

Commits on Dec 20, 2018

Update transport docs and settings for changes (elastic#36786 )
Tim-Brooks
committed
Revert transport.port change for tests (elastic#36809 )
Tim-Brooks
committed