FBTest for issue 5483 (Image previews in HTML panel missing on hover)
http://code.google.com/p/fbug/issues/detail?id=5483
Added steps to test case
Hide the rerun button until D.Frame.prototype.replaceCall is implemented
Merge branch 'jsd2' of github.com:firebug/firebug into jsd2
Merge with jsd2