Changed bootstrap's gutter to use 2rem to align better with other measurements.

Author: tksheppard

src/assets/bootstrap/scss/_variables.scss

@@ -195,7 +195,7 @@ $container-max-widths: (
 // Set the number of columns and specify the width of the gutters.
 
 $grid-columns:                12 !default;
-$grid-gutter-width:           30px !default;
+$grid-gutter-width:           2rem !default;
 
 // Components
 //