[hotfix 0.0.1-1]: Added behavior to close panel to objects, else may be ...

...a long search for people until they fix. There is about 1 blog article on the entire web that explains how LT plugins work and that shows this correct place to add the behavior. So it's the Right Thing To Do &trade; to provide a working sample. Currently anyone unaware has to kill LT entirely to get rid of the tab.