- fixed style
- created demo page
- created docs

enhanced css-compile with node-sass-package-importer and replaced ../../node_modules/bootstrap with ~bootstrap

- updated direct-chat-contacts background to $dark
- updated contacts-list-date & contacts-list-msg to $gray-400
- added direct-chat-contacts-light style

- removed setMargin in js
- fixed control-sidebar slide animate step
- added zindex-contro-sidebar
- added control-sidebar-push class
- updated zindex's

- added card-title float:left
- changed card-header & card-title padding

- added "Fix Select2 heights" #2178
- rebuild dist files & synced to docs

- updated assets
- added bootstrap-duallistbox in dependencies
- updated colors section in layout
- finished components/cards
- created & finished components/boxes
- added missing position relative to .info-box

- changed /* comments to // (to avoid displaying in compiled css file)
- added .alert-primary
- removed _label.scss (due renamed to badge with BS4)
- reworked bg-*, bg-gradient-*, custom-switch-*, custom-range-* as mixin
- changed control-sidebar-light border color to main-header border
- renamed `.direct-chat-info` to `.direct-chat-infos` (not theme color, its a extra block inside direct-chat & updated demo files
- enhanced direct-chat with all colors
- added `.dropdown-menu-xl`
- reworked color-palette in pages/UI/general
- changed `Block Quotes Pulled Right` to `Secondary Block Quotes` in pages/UI/general
- removed `@-webkit-keyframes flipInX` due autoprefixer
- enhanced demo.js with additional colors for sidebar & renamed `Navbar border` to `No Navbar border`

- reworked sidebar-dark-* & sidebar-light-* to reduce lines (~1000 lines)
- changed `border-bottom: none` to `border-bottom: 0`
- added colors to $colors array
- removed box-solid-variant mixin (unused)
- removed `skin-dark-sidebar` & `skin-light-sidebar` mixin
- added `cards-variant` & `sidebar-color` mixin

fixed zindex's to avoid overlapping & fixed brand-link transitions while switching between collapsed & open

- added .anchor for anchors with offset while fixed navbar
- fixed .main-header border
- added sidebar color variations (colors)
- added pre & blockquote style for doc usage
- fixed brand-link width with .logo-switch

- removed js margin-top/-bottom generation
- added layout-navbar-not-fixed & layout-footer-not-fixed incl. responsive variants (eg. layout-*-navbar-not-fixed, layout-*-footer-not-fixed)
- added responsive variants for fixed (eg. layout-*-navbar-fixed, layout-*-footer-fixed)
- added default border-bottom to main-header navbar like main-footer
- removed .border-bottom from main-header navbar in demo pages

- added display none/block to control-sidebar to avoid sidewards scrolling
- reworked ControlSidebar.js with queue to add and remove .control-sidebar-animate from html to avoid overflow