add test for MySQLDatabase
add TemplateFileRepository
update TempalteFileRepository
add Group entity
add GroupPermission
add CompositeLogger
add ErrorHandlerInterface and ErrorSeverity
add UrlParser
delegate url parsing function to UrlParser
add UrlParser::isAdminPage()
delegate module directory detectation to UrlParser
fix UrlParser
new Delegate()でデリゲート名を束縛できるようにした
add Delegate
delete XoopsSecurity
command pattern to executeCommon()