DBusError trait and a panic fix
This is mostly just about cherry-picking changes from !381 (closed) that fix #207 (closed) and #193 (closed).
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
This is mostly just about cherry-picking changes from !381 (closed) that fix #207 (closed) and #193 (closed).