v1.4.0

• Backup extension v2
• RTL styles (thanks to @mohammed-manssour)
• Option types:
  • Moved scripts and styles enqueue from the FW_Option_Type::_render() method to the new method FW_Option_Type::_enqueue_static().
  • Added fw()->backend->enqueue_options_static($options)
• Moved the builder option type to the builder extension.
  • Created config for the builder items widths that can be overwritten/customized in the framework-customizations/extensions/builder/config.php or via filter for specific builder type.
• Fixed #27
• Fixed #31