feat(app): use htmlmin for smaller HTML files

Use htmlmin options to minify the HTML correctly. Only 'safe' options
are used

Fixes #469

Author: eddiemonge

templates/common/Gruntfile.js

@@ -273,14 +273,10 @@ module.exports = function (grunt) {
     htmlmin: {
       dist: {
         options: {
-          // Optional configurations that you can uncomment to use
-          // removeCommentsFromCDATA: true,
-          // collapseBooleanAttributes: true,
-          // removeAttributeQuotes: true,
-          // removeRedundantAttributes: true,
-          // useShortDoctype: true,
-          // removeEmptyAttributes: true,
-          // removeOptionalTags: true*/
+          collapseWhitespace: true,
+          collapseBooleanAttributes: true,
+          removeCommentsFromCDATA: true,
+          removeOptionalTags: true
         },
         files: [{
           expand: true,
@@ -358,8 +354,7 @@ module.exports = function (grunt) {
         'compass:dist',<% } else { %>
         'copy:styles',<% } %>
         'imagemin',
-        'svgmin',
-        'htmlmin'
+        'svgmin'
       ]
     },
 
@@ -440,7 +435,8 @@ module.exports = function (grunt) {
     'cssmin',
     'uglify',
     'rev',
-    'usemin'
+    'usemin',
+    'htmlmin'
   ]);
 
   grunt.registerTask('default', [