Tweaks to also include potential sub scripts in the cache invalidatio…

…n + check if the file exists before altering the URL

Adding style to `field_module_pilopress_api_version` to avoid undefin…

…ed index

Same as in commit 01e2e0a

Update README.md

Removed generated TailwindCSS PostCSS & JS config files

#52 - New Fields types (tinyMCE styles options)

#4 - AJAX compilation