Add requirejs config

Added the configuration required by the webjars-locator to create the requirejs config.

Since this contains multiple modules I created a config and shim for each of them. This way you can pull only the modules you need (eg: `require(['foundation-alert','foundation-reveal'],...)`, or if you want all of them you can pull the *foundation-all* module.

Also changed the destDir as discussed in https://github.com/webjars/soundmanager2/pull/1