v0.2.0

• Breaking: Renamed Error::ClientClosed to Error::RemoteUnexpectedlyClosedConnection to clarify intent
• Minor: Added event_id to UserNoticeMessage to allow parsing undocumented types of events.
• Minor: Client previously returned Error::ClientClosed in cases where that error wasnt appropriate (when the client was closed due to some other error that had occurred previously) - the error that caused a connection to close down is now kept as long as needed and every time the connection is used after this error, a clone of the original cause is returned.
• Bugfix: Fixed UserStateMessage not being exported (pub).