Refs #12439 Rename 'javascript/src/Plugins/tinymce.charCount.js' to...

Refs #12439 Rename 'javascript/src/Plugins/tinymce.charCount.js' to 'tinymce.charcount.js' (lowercase 'c'). Currently the mockup richtexteditor.html tries to load 'tinymce.charcount.js'. Also the final file 'qfq.charcount.min.js' is written in lowercase.

Documentation/Form.rst

@@ -1545,7 +1545,7 @@ Explanation:
 Type: editor
 ^^^^^^^^^^^^
 
-* TinyMCE (https://www.tinymce.com, community edition) is used as the QFQ Rich Text Editor.
+* TinyMCE (https://www.tinymce.com, community edition) is used as QFQ Rich Text Editor.
 * The content will be saved as HTML inside the database.
 * All configuration and plugins will be configured via the 'parameter' field. Just prepend the word 'editor-' in front
   of each TinyMCE keyword. Check possible options under:
@@ -1558,11 +1558,12 @@ Type: editor
 
   * Top: *menubar* - by default hidden.
   * Top: *toolbar* - by default visible.
-  * Bottom: *statusbar* - by default hidden, exception: *min_height* and *max_height* are given via size parameter.
+  * Bottom: *statusbar* - by default hidden, exception: *min_height* and *max_height* are given via size parameter or
+    *maxLength* is given.
 
 * The default setting in *FormElement.parameter* is::
 
-    editor-plugins=code link lists searchreplace table textcolor textpattern visualchars
+    editor-plugins=code link lists searchreplace table textcolor textpattern visualchars paste
     editor-toolbar=code searchreplace undo redo | styleselect link table | fontselect fontsizeselect | bullist numlist outdent indent | forecolor backcolor bold italic editor-menubar=false
     editor-statusbar=false
 
@@ -1581,6 +1582,15 @@ Type: editor
     editor-content_css = fileadmin/custom.css
 
 * *FormElement.size* = <min_height>,<max_height>: in pixels, including top and bottom bars. E.g.: 300,600
+* *FormElement.maxLength* = <max in browser>[,<max on server>] - e.g.: 1000 or 1000,1500
+
+  * *max in browser*: Only text, without any formatting, is counted. The value here is neither number of characters
+    nor number of bytes (in UTF8 bytes and characters don't have to be equal). For the counting, all HTML tags are skipped.
+    The current count is displayed in the status bar at the bottom. When the content is saved, all HTML tags are saved too.
+    Therefore you should definitely reserve some extra space in the table column.
+
+  * *max on server*: This can be upto the size of the table column. It is the real maximum which will be stored. Every
+    character is counted. Again be careful, UTF8 character might need several bytes.
 
 
 Type: annotate