TinyMCE4XOOPS V2.0

- Updated TinyMCE V4.0.11 to V4.0.20
- Updated Responsivefilemanager 9.3.0 to 9.4.0
- Add index.html files in all directories
- Bugfixes : path in XOOPSQuote, XOOPSCode, and QRcode
- Add plugin Codemirror (Thanks to andrey3761)
- Add many languages
- Blue colorisation for XOOPSQuote, XOOPSCode and ExtGallery