upgrade quill.js to latest version

[imagescape]

This upgrade should allow the ability to create a link that opens in a separate tab vs in the same browser window. If it does, it is not obvious how this should be accomplished. Operation seems the same as before the upgrade.

[chris-erickson]

I'm just going to dump some notes I have in here that outline what's needed to update Quill. Unfortunately, it's not as simple as just updating the NPM dependency.

# Developing
- Checkout the repo local to the Django project in question
- Install Quill with pip using the link method (uninstall the old one potentially):
    - pip install -e django-quill/
- Install npm dependencies
    - npm install
- Copy static files
    - ./manage.py collectstatic

As you make changes to the JS, you will need to build them using
    - make build

Then you need to copy the files in django again, with collectstatic

Finally, you need use your final, built code and create the pypi and git tags/github release.  This isn't well documented, unfortunately.

# Some Updates Required for Version Bump:
- Update Quill npm dependencies
- Update js API calls (there's a handful of errors in the console) with the current config
    - `django-quill/quill/static/quill/js/image.js` needs to change the registerModule call to register
    - More needed in terms of setting up the modules
- Get the new built vendor CSS file, which can be located at some thing like `https://cdn.quilljs.com/1.1.10/quill.snow.css` if you don't want to build it yourself
- Update the django Suit related CSS in `django-quill/quill/static/quill/css/quill.css` as needed

The recent versions of Quill are quite nice, and are really a much better alternative to CKEditor, etc in some ways. This would be an excellent opportunity for the community to take on.