This defines the following permissions:
Granted to opers by default:
- relay.create
- relay.destroy
- relay.claim
- relay.link
- relay.delink
- relay.linkacl.view
- relay.linkacl
Granted to all users by default:
- relay.linked
And the following which is not explicitly granted:
- relay.savedb
Closes#325.
- Fix possible type errors in add/removeDefaultPermissions by converting permlist values to sets.
- Fix wrong permission string being checked in automode.<command>.#channel
- automode: register and unregister default permissions on load/unload.
- permissions: add an 'also_show' argument to checkPermissions(), to display alternative permissions that weren't directly checked.
