add a dojo build profile

This:

 * Adds a Dojo build profile
 * Uses define() anonymously, so that Dojo assigns the module ID at build time (the previous form tickled http://bugs.dojotoolkit.org/ticket/16387)

Note that this only includes `moment.js`.  The languages are dynamically included using a relative path ("lang/whatever"), and I don't see an easy way to make that work.