Build: Add csscomb to cleanup sass output

This also fixes the issue with libsass missing the new line at EOF

Closes gh-50

Author: arschmitz

.csscomb.json

@@ -0,0 +1,24 @@
+{
+    "remove-empty-rulesets": true,
+    "always-semicolon": true,
+    "color-case": "lower",
+    "block-indent": "\t",
+    "color-shorthand": true,
+    "element-case": "lower",
+    "eof-newline": true,
+    "leading-zero": false,
+    "quotes": "double",
+    "sort-order-fallback": "abc",
+    "space-before-colon": "",
+    "space-after-colon": " ",
+    "space-before-combinator": " ",
+    "space-after-combinator": " ",
+    "space-between-declarations": "\n",
+    "space-before-opening-brace": " ",
+    "space-after-opening-brace": "\n",
+    "space-after-selector-delimiter": "\n",
+    "space-before-selector-delimiter": "",
+    "space-before-closing-brace": "\n",
+    "strip-spaces": true,
+    "unitless-zero": true
+}

package.json

@@ -55,6 +55,7 @@
 		"grunt-contrib-jshint": "0.10.0",
 		"grunt-contrib-connect": "0.9.0",
 		"grunt-contrib-watch": "0.6.1",
+		"grunt-csscomb": "3.0.0",
 		"grunt-git-authors": "2.0.0",
 		"grunt-html": "1.6.0",
 		"grunt-jscs": "0.6.2",

scss/atoms/typography/_variables.scss

@@ -6,8 +6,7 @@
 // For example, normal: 400;
 $normal: normal;
 $bold: bold;
-
-$root-font:(
+$root-font: (
 	color: #222,
 	font-size: 20px,
 	line-height: 1.5