Support for compatibility with old TWiki versions. Packaged
separately because 99.999999% of the time this won't be needed.
StaticMethod *upgradeCategoryTable ($session,$web,$topic,$meta,$text) -> $text
Upgrade old style category table
May throw TWiki::OopsException
migrateToFileAttachmentMacro ( $session, $meta, $text ) -> $text
Migrate old HTML format
upgradeFrom1v0beta ( $session, $meta ) -> $text