LearnPlus v3.0.0

Changes

• remove gulp and upgrade to webpack using theme-mix
• upgrade Bootstrap to v4 beta 2
• bump material-design-kit to 1.0.0-alpha.17
• bump dom-factory to 1.0.0-alpha.7
• bump sidebar-style-guide to 2.0.0
• upgrade src html templating to nunjucks
• move src/data to dist/assets/data
• move src/js/examples/scripts to src/js/examples
• move dist/examples/js, dist/examples/css to dist/assets
• drop .min.css and .min.js extensions
• switch tether with popper
• replace mdk-js-* initializer classes with js-mdk-*
• upgrade fullbleed app layouts to flexbox
• replace .media-middle with .align-items-center
• fix quiz sidebar countdown spacing
• add .sidebar-menu-icon--left spacing utility to sidebar menu icons
• replace .sidebar-menu-label with .sidebar-menu-badge
• replace .tag-* with .badge-*
• remove .pull-* .push-* grid classes
• replace .text-xs-* with .text-*
• replace .card-block with .card-body
• replace .card-primary with .bg-primary.text-white
• replace .card-success with .bg-success.text-white
• replace .card-info with .bg-info.text-white
• replace .card-inverse with .bg-dark.text-white
• replace .card-gray with .bg-dark.text-white
• replace .bg-inverse with .bg-dark
• replace .navbar-inverse with .navbar-dark
• replace .hidden-xs-down with .d-none.d-sm-block
• replace .hidden-sm-down with .d-none.d-md-block
• replace .hidden-md-down with .d-none.d-lg-block
• replace .badge-default with .badge-light
• add .media or .d-flex to .list-group-item where necessary
• replace .float-xs-* with .float-*
• replace .btn-(.*)-outline with .btn-outline-$1
• add missing instructor help center page
• improve cards page formatting
• upgrade progress bars
• upgrade sidebar collapsing menus
• upgrade sidebar active links for ui component pages