Add new/updated r7 employees to mailmap
Add and sort other contributors in mailmap
pull latest mdm
Land #4433 - Update mailmap
Remove references to Redmine in code

See #4400. This should be all of them, except for, of course, the module
that targets Redmine itself.

Note that this also updates the README.md with more current information
as well.
Missed one in CONTRIBUTING.md
Lands #4436, latest version of MDM

Fixes an issue with protocol inclusion when adding an NX console
Updating lockfile post MDM version bump
Normalize links to metakitty, unleashed, and wiki
Land #4439, rm Redmine references in code