MapGuide tidbits: Fusion and Bing Maps

If you use Fusion with Bing Maps, you should start applying for an API key because on June 30th, 2017, the legacy Bing Maps controls (ie. The ones that don't require an API key) will shut down.

I gather Autodesk have already taken care of this problem for their next release of AIMS, but for the rest, I'll make sure that this is backported to older Fusion branches before the June 30th deadline.

And also to make sure that Maestro has the updated Fusion Editor UI to match.