Tests: Uncomment sass tests

Author: tonyganch

test/options/sass/test.js

@@ -1,4 +1,4 @@
-describe.skip('Sass', function() {
+describe('Sass', function() {
     beforeEach(function() {
         this.comb.configure({});
     });
@@ -23,7 +23,7 @@ describe.skip('Sass', function() {
         this.shouldBeEqual('interpolated-variable-1.sass');
     });
 
-    it('Should parse interpolated variables inside values', function() {
+    it.skip('Should parse interpolated variables inside values', function() {
         this.shouldBeEqual('interpolated-variable-2.sass');
     });