Added `!default` to all sb-admin-2 SCSS variables so they can be overwritten and customized when importing the SCSS in an own project.
Complete refactor! Main layout changed, new pages added, build system changed, now uses Gulp 4, Bootstrap SCSS, custom SCSS, new design, dropped Morris and Flot Charts, added Chart.js for charts, new example pages, and more...
New design with breaking changes, gulp 4, all dependencies updated, dev environment changed, and many more changes
