Fix ServerSuite.
Filter messages to plugins according to targets.
Support plugin updates and removals.
Handle Logf for plugins via Plugger.
Escape message lines.
Escape LDAP filters.
Use bson.DurationString on all plugins.
s/Settings/Config/
s/name/_id/ for plugins and accounts.
ldap: use more strict cn matching
Fix nick-specific target matching.
sendraw: new plugin
Support changing and retrying the desired nick.