Fix unserializing badwords to not add dupes when unserializing an existing bw object
fixed a possible crashbug in the german language file
added missing support for operonly and silentoperonly in os_defcon
fixed typo in the last commit
changed the engine of the chanstats table from InnoDB back to MyISAM to avoid increasing the auto_increment counter on each INSERT IGNORE. For existing tables please manually run 'ALTER TABLE anope_chanstats ENGINE=MyISAM'.