Double navigation when showing test results

[rosen-vladimirov]

When showing test results, the page with results is refreshed twice before closing.
It's easily seen on iOS Simulator, but in fact it's reproducible on both Android and iOS.

Steps to reproduce:

• tns create testApp
• cd testApp
• tns test init --framework jasmine
• tns test ios

Check the iOS Simulator, you'll notice the flash at the end when test results are shown.