add .less variables (unused yet)

themes/kwant/less/variables.less

+/*! Generated by Live LESS Theme Customizer */
+
+@brand-primary: #07c;
+@font-family-sans-serif: "Bitstream Vera Sans",  Verdana, sans-serif;
+@font-family-serif: "Bitstream Vera", Georgia, serif;
+@font-family-base: @font-family-serif;
+@font-size-base: 16px;
+@headings-font-family: @font-family-sans-serif;
+@navbar-margin-bottom: 0;
+@navbar-border-radius: 0;
+@navbar-padding-vertical: 0;
+@navbar-default-color: @gray-base;
+@navbar-default-bg: white;
+@navbar-default-border: white;
+@navbar-default-link-color: @gray-base;
+@well-bg: #eeeeee;
+