Django-grapesjs

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- Added the static ignoring functionality in the "ignore" tag. Added "hidden" tag
- Fixed bug when getting css and html
- Added the ability to work with the django or jinja tags in the editor

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- Added multiple choice of templates.
- Added unit tests.
- Changed the template "change_form.html"

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- Fixed validate parameter.

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- Added the string handlers.
- Added the tags render and makeup.
- Fixed bugs

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- Added basic and minimal editor configuration
- Corrected the installation of fields with different configurations

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- Added support for many fields "GrapesJsHtmlField" in the form