Item Extension WordPress 插件

- Fix: Fixed PHP Notices and Warnings displayed if debug is turned on

- Fix: Fixed wrong date displayed in Date input for some cases

- Fix: XSS Prevention for text input field

- Fix: Admin notice

- Fix: Compatibility with AIT Languages

- Update: Plugin compatibility 

- New: Redesign of plugin admin page
- Update: POT translation files

- Fixed: Wrong text domain

- Added: Compatibility functions

- Fixed: Added multilingual text inputs to base template for clonable input
- Fixed: Clone input sorting function

- Fixed: Admin multilanguage input save, when only one language is displayed in the admin

- Fixed: Escaping html in text input type

- Fixed: Update function for administrator fields

- Updated: Administration for the plugin was updated
- Updated: Administrator now has full control over the displayed data
- Updated: Updated POT translation files
- Fixed: Replaced checkbox input with on-off in the administration
- Fixed: Now it is possible to define multiple inputs without the values overriding
- Added: Many options (help, default value, min, max, step) for a single input in package definition
- Added: Language support for label and help inputs in the administration
- Added: Section settings for item detail
- Removed: Item Extension element was removed, data are now part of the item content

- Fixed: Admin js tweaks

- Fixed: Admin javascripts

- Fixed: Ajax saving function

- Fixed: Internal errors and notices

- Fixed: Fronend notices

- Updated: Asset paths

- Added: Missing textdomains
- Update: Updated pot translation files

- Update: All translations are now handled by AIT Languages plugin

- Added: Progressive preloading for item extension element
- Fixed: Frontend stylesheet load

- Added: Option to display / hide empty element
- Updated: Conditions to display element on page
- Updated: Datepicker option type

- Added: Translations in 24 languages

- Plugin release