mm upgrade and feature updates

assets/css/main.scss

@@ -1,79 +1,8 @@
 ---
+# Only the main Sass file needs front matter (the dashes are enough)
 ---
 
-/*
- *    Minimal Mistakes Jekyll Theme
- *
- *  - Michael Rose
- *  - mademistakes.com
- *  - https://twitter.com/mmistakes
- *
-*/
+@charset "utf-8";
 
-/*
-   Variables
-   ========================================================================== */
-
-@import "variables";
-
-
-/*
-   Vendor
-   ========================================================================== */
-
-/* Breakpoint - media query mixins */
-@import "vendor/breakpoint/breakpoint";
-@include breakpoint-set("to ems", true);
-
-/* Font Awesome - icon font set */
-@import "vendor/font-awesome/font-awesome";
-
-/* Magnific Popup - responsive lightbox */
-@import "vendor/magnific-popup/magnific-popup"; // Magnific Popup
-
-/* Susy - grid mixins */
-$susy: (
-  columns: 12,
-  gutters: 1/4,
-  math: fluid,
-  output: float,
-  gutter-position: after,
-  container: $large,
-  global-box-sizing: border-box,
-  // debug: (
-  //   image: show,
-  //   color: blue,
-  //   output: overlay,
-  //   toggle: top right,
-  // ),
-);
-@import "vendor/susy/susy";
-
-
-/*
-   Base
-   ========================================================================== */
-
-@import "mixins";
-@import "reset";
-@import "base";
-@import "utilities";
-@import "animations";
-@import "tables";
-@import "buttons";
-@import "notices";
-@import "masthead";
-@import "navigation";
-@import "footer";
-@import "syntax";
-@import "forms";
-
-
-/*
-   Layout specific
-   ========================================================================== */
-
-@import "page";
-@import "archive";
-@import "sidebar";
-@import "print";
+@import "minimal-mistakes/skins/{{ site.minimal_mistakes_skin | default: 'default' }}"; // skin
+@import "minimal-mistakes"; // main partials