FMDB extension / extra added

[Gus Mueller]

I've added another example .jstalkextra bundle, for FMDB. I've also
added support for the loading of BridgeSupport xml files from those
bundles, which was handy since FMDB had some arguments that were vargs.

I've also updated the binary on my site, in case you don't want to
checkout and build everything:
http://www.flyingmeat.com/download/private/JSTalkPreview.zip

-gus

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August 'Gus' Mueller
Flying Meat Inc.
http://flyingmeat.com/