Added: Allow admin user to select a form type for ads creation and edition ("Multi Steps Form" or "Single Step Form")
Added: Admin panel: New settings added.
Added: Add font color function in Simditor WYSIWYG.
Updated: Social Network Login improved (LinkedIn & Twitter login added. Google+ login can be removed).
Updated: Laravel 5.8 deprecated functions (String and Array Helpers) cleared.
Updated: Simditor WYSIWYG translation added.
Updated: Many minor improvements.
Updated: Composer packages updated.
Fixed: Bugfix: Resource interpreted as Stylesheet but transferred with MIME type application/javascript (in the latest version of Chrome)
Fixed: Minor bugs fixes.
