mozilla/addon-sdk — pull request #1692 by erikvold (2014-10-30 19:44:18+00:00)
Title:  	Erik Vold 	erikvold 	Bug 1089236 cleaning test-panel:testPanelDoesNotShowInPrivateWindowNoAnchor

* using html instead of svg
* testing that panel.isShowing is false between two calls to show() (where the first should not work)
* calling loader.unload at the end of the test
* catching more possible errors