retry this often failing test

tests/UI/specs/SegmentSelectorEditor_spec.js

@@ -28,6 +28,9 @@ describe("SegmentSelectorEditorTest", function () {
     });
 
     it("should open segment editor when edit link clicked for existing segment", function (done) {
+
+        this.retries(3);
+
         expect.screenshot("2_segment_editor_update").to.be.captureSelector(selectorsToCapture, function (page) {
             page.click('.segmentList .editSegment:first');
             page.wait(1000);