fix(docs): Build on Windows results in broken docs site

Multiline SCSS comments result in ILLEGAL_CHARACTER errors in Chrome when built with Windows.
Removed unused $mdMenu injections in MenuDirective and fixed duplicate offsets variable.

Fixes #4226. Closes #4227.

Author: Splaktar

config/build.config.js

@@ -3,7 +3,7 @@ var fs = require('fs');
 var versionFile = __dirname + '/../dist/commit';
 
 module.exports = {
-  ngVersion: '1.4.3',
+  ngVersion: '1.4.4',
   version: pkg.version,
   repository: pkg.repository.url
     .replace(/^git/,'https')

src/components/menu/_menu.js

@@ -135,7 +135,7 @@ angular.module('material.components.menu', [
  *
  */
 
-function MenuDirective($mdMenu) {
+function MenuDirective() {
   var INVALID_PREFIX = 'Invalid HTML for md-menu: ';
   return {
     restrict: 'E',

src/core/style/mixins.scss

@@ -101,17 +101,15 @@
 }
 
 
-/* mixin definition ; sets LTR and RTL within the same style call */
+// mixin definition ; sets LTR and RTL within the same style call
 @mixin rtl($prop, $value, $rtl-value) {
   #{$prop}: $value;
   html[dir=rtl] & {
     #{$prop}: $rtl-value;
   }
 }
 
-/**
- * Position a FAB button.
- */
+// Position a FAB button.
 @mixin fab-position($spot, $top: auto, $right: auto, $bottom: auto, $left: auto) {
   &.md-fab-#{$spot} {
     top: $top;