TinyMCE4 for Mezzanine

This app enables the latest TinyMCE4 for Mezzanine, including integration with Mezzanine's filebrowser_safe (just "filebrowser" from here on).

To use it, you need to make these three simple changes to your settings.py:

1. Add "tinymezzce4" to INSTALLED_APPS.
2. Add the line RICHTEXT_WIDGET_CLASS = 'tinymezzce4.widgets.TinyMceWidget'
3. Add the line TINYMCE_SETUP_JS = '/static/tinymezzce4/js/tinymce_setup.js'. To customise your TinyMCE4 setup, make your own modified copy of this file and change the TINYMCE_SETUP_JS to point to it.

Restart your app, and you're done!

Notes:

• TinyMezzCE4 doesn't actually ship with TinyMCE; it uses the CDN-hosted version.
• "tinymezzce4" must appear before "filebrowser_safe" in INSTALLED_APPS, because it overrides some of filebrowser's templates and static files. In a normal Mezzanine installation, filebrowser_safe is added to INSTALLED_APPS at a later stage, so anywhere will be fine.

Warning: updates to filebrowser could break this app

To allow integration with filebrowser, TinyMezzCE4 overrides some of its templates. If the filebrowser templates are updated, your app will still be using the templates provided with TinyMCE4. This is a problem, but I aim to get the necessary modifications into Mezzanine's filebrowser_safe, which would solve it permanently.