opengeo/gxp — pull request #106 by twpayne (2011-12-09 12:42:22+00:00)
Title: Ensure event handlers are unregistered when panel is destroyed

`GoogleEarthPanel` does not unregister the event handlers it adds on the map's layers. This causes problems later if the map's layers are modified after the `GoogleEarthPanel` is destroyed.

The attached patch fixes this.