Refactored Sass

Merged SCSS from various recent projects and implemented some of the latest features from InuitCSS.

When using the SCSS structure in your own project, modify the ‘settings/config*.scss’ files and leave ‘settings/core.scss’ intact.

Changes:
- Updated Normalize to 5.0.0;
- Migrated imports to ‘main.scss’;
- Split ‘settings.scss’ into smaller parts;
- Revised variable names for settings;
- Added spacing unit variables;
- Replaced ‘objects/grid.scss’ with ‘objects/layout.scss’ (from inuitcss);
- Added ‘objects/crop.scss’ and ‘objects/ratio.scss’ (from inuitcss);
- Added @font-face mixin/function from Bourbon;
- Added various new functions and mixins (widths, font-size, truncation,…);
- Renamed Trumps to Utilities;
- Added vatious new Utilities (print, states, spacing, widths);
- Reorganized Utilities into topics;

assets/styles/objects/_grid.scss

@@ -1,22 +0,0 @@
-// ==========================================================================
-// Grid
-// ==========================================================================
-@mixin grid($grid-gutter: 0) {
-    margin-left: -$grid-gutter;
-    letter-spacing: normal;
-    font-size: 0;
-}
-.o-grid {
-    @include grid;
-}
-
-@mixin grid_item($grid-gutter: 0) {
-    display: inline-block;
-    padding-left: $grid-gutter;
-    width: 100%;
-    vertical-align: top;
-    font-size: 1rem;
-}
-.o-grid_item {
-    @include grid_item;
-}