Improve a bit tinymce detection (#2155)

* Improve a bit tinymce detection

- Add a `script` pattern
- Add a way to get the major version

This can be tested [here](https://www.mediapart.fr/journal/france/080318/mandelieu-un-promoteur-vendeur-d-armes-en-affaire-avec-la-famille-du-maire)

* Add a missing part in a regexp, spotted by @gadcam

src/apps.json

@@ -9598,8 +9598,9 @@
       "cats": [
         24
       ],
+      "script": "/tinymce(?:\\.min)?\\.js",
       "js": {
-        "tinyMCE": ""
+        "tinyMCE.majorVersion": "([\\d.]+)\\;version:\\1"
       },
       "icon": "TinyMCE.png",
       "website": "http://tinymce.com"