Changed UTF-8 encoding to ISO-8859-1 for translation properties files because Java assumes that the files are in ISO-8859-1
Removed UTF8Control for handling UTF-8 properties files because all properties files are now ISO-8859-1
Completed migration to new config system

The old config.ini system is being retained in OldConfig for a little while to allow existing users to have their configuration migrated automatically. Once we think everyone has upgraded then we can removed OldConfig.