update foundation sass settings, foundation sites

[sandeepsajan0]

Description

Upgrade the foundation to the latest version
Close #9

Rationale

Use case(s) / visualization(s)

[sandeepsajan0]

I have put only vendors and scss in foundation sites but paste what-input whole as I get from new foundation project.

[Parbhat]

Getting the following error visiting the Homepage

CompileError at /
Error: File to import not found or unreadable: util/util.
        on line 63:1 of dj_foundation_training/static/sass/_settings.scss
        from line 3:1 of dj_foundation_training/static/sass/app.scss
>> @import 'util/util';

We will also need these changes:

1. Update Foundation JS to latest version
   

   cookiecutter-django-foundation/{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/templates/base.html

   Line 128 in a5929a3

   <script src="https://cdnjs.cloudflare.com/ajax/libs/foundation/6.4.3/js/foundation.min.js"></script>

2. It is not required to copy complete what-input directory. Only need the what-input.min.js
   

   cookiecutter-django-foundation/{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/templates/base.html

   Line 127 in a5929a3

   <script src="{% static 'libs/what-input/what-input.min.js' %}"></script>

3. Also, update JQuery to the latest version supported by Foundation
   

   cookiecutter-django-foundation/{{cookiecutter.project_slug}}/{{cookiecutter.project_slug}}/templates/base.html

   Line 126 in a5929a3

   <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>

4. We are not including Motion UI by default. So, we can turn off it as well.

[sandeepsajan0]

Foundation sites version 6.6.1 have compiling issue with libsass version 0.19.4 specifically here with "solid' style.
So, We have decided to use 6.5.3(foundation-sites) with the latest version of libsass.