(*) Fixed video and background events.

(*) Fixed Bookmarks & EditorBookmarks being added to the same variable.
(*) Fixed colour event not being added.
(*) Fixed enummed variables getting added as literal enum strings.
(*) Changed slider maxPoints variable to double for compatibility with some maps.
(*) Fixed versions 3 & 4 being written the same was as versions > 4 in Save().
(*) Minified (slightly).