Updated AMD config to enable async loading with googlemaps-amd plugin

[adambiggs]

This fixes the UMD wrapper so that RequireJS can load the Google Maps API asynchronously via the googlemaps-amd plugin.

I also removed the AMD module ID to make it easier to work with:

You can explicitly name modules yourself, but it makes the modules less portable -- if you move the file to another directory you will need to change the name. It is normally best to avoid coding in a name for the module and just let the optimization tool burn in the module names.

Also, if GMaps is loaded via a module loader, don't define it as a global.

[hpneo]

Hi, can you please move your changes from gmaps.js to gmaps.core.js? gmaps.js is just a file generated on each new version.

[adambiggs]

There are no changes needed in gmaps.core.js, I only changed Gruntfile.js and umd.hbs. The changes in gmaps.js came from building using the $ grunt task.

[hpneo]

Right, sorry about that.