greenlock.manager.remove({subject}) doesn't work #56

greenlock.manager.remove({subject}) doesn't work, it never finds a site by subject`.

npx greenlock remove --subject has the same problem.

I've tried debugging and this is what I came up with:

In
https://git.coolaj86.com/coolaj86/greenlock.js/src/branch/master/lib/manager-wrapper.js#L203
the public manager api is exposed. The remove function expects {subject}, it checks and refuses to take servername or altname.
The remove function in the wrapper calls the merged remove function, which calls mega.get:
https://git.coolaj86.com/coolaj86/greenlock.js/src/branch/master/lib/manager-wrapper.js#L475
The opts to mega.remove at this time are {subject}.

mega.get however, uses {servername, wildname}.

A workaround is to use
greenlock.manager.set({subject, deletedAt: Date.now()})