includedFiles returns an array in no particular order

Fixes: #1123

test/api.js

@@ -7,6 +7,7 @@ var assert = require('assert'),
     resolveFixture = path.resolve.bind(null, __dirname, 'fixtures');
 
 describe('api', function() {
+
   describe('.render(options, callback)', function() {
     it('should compile sass to css with file', function(done) {
       var expected = read(fixture('simple/expected.css'), 'utf8').trim();
@@ -1046,7 +1047,7 @@ describe('api', function() {
         file: fixture('include-files/index.scss')
       }, function(error, result) {
         assert(!error);
-        assert.deepEqual(result.stats.includedFiles, expected);
+        assert.deepEqual(result.stats.includedFiles.sort(), expected.sort());
         done();
       });
     });
@@ -1507,11 +1508,12 @@ describe('api', function() {
         fixture('include-files/bar.scss').replace(/\\/g, '/'),
         fixture('include-files/foo.scss').replace(/\\/g, '/'),
         fixture('include-files/index.scss').replace(/\\/g, '/')
-      ];
+      ].sort();
+      var actual = result.stats.includedFiles.sort();
 
-      assert.equal(result.stats.includedFiles[0], expected[0]);
-      assert.equal(result.stats.includedFiles[1], expected[1]);
-      assert.equal(result.stats.includedFiles[2], expected[2]);
+      assert.equal(actual[0], expected[0]);
+      assert.equal(actual[1], expected[1]);
+      assert.equal(actual[2], expected[2]);
       done();
     });