having fun migrating to webjars-locator
Formatting
Some tidying up.

TODO: Optimisations
Resolve also from the local maven repo so that we can pick up the latest snapshot for the locator
Now making use of the new WebJarAssetLocator from the webjars-locator project.

The bootstrap JavaScript has also been modified so that partial path based lookups can be supported as per its locate method counterpart.