[lpetrich]

I've gone ahead and implemented this fix:

Centers an image in the info balloon's "Image" tab. If the image is larger than the maximum allowed size in either direction, then it will be rescaled to fit.

In product-vbgooglemapme.xml

Line 550:
var content2 = "<img width=\"$gmimagemax\" border=\"0\" src=\""+pimage+"\"></a>";
to
var content2 = "<img style=\"max-width: {$gmimagemax}px; max-height: {$gmimagemax}px; display: block; text-align: center; margin: auto; vertical-align:middle\" src=\""+pimage+"\">";

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I've also tracked down the code for selecting the default map type; I will be posting it when I implement it.