Please describe the changes this PR makes and why it should be merged:
This PR changes the inconsistent and confusing "client/server" naming into "publisher/subscriber", more accurately depicting what each class does.
Status and versioning classification:
Code changes have been tested against the Discord API, or there are no code changes
This PR changes the library's interface (methods or parameters added)
This PR includes breaking changes (methods removed or renamed, parameters moved or removed)
Please describe the changes this PR makes and why it should be merged: This PR changes the inconsistent and confusing "client/server" naming into "publisher/subscriber", more accurately depicting what each class does.
Status and versioning classification: