feature request: bundle via entry point

if we [enable transforms](https://github.com/jfhbrook/browserify-cdn/issues/84), it would be nice to perform them on an entry point.

this might require abandoning normal REST semantics in order to get past request size limit imposed by the url size limit.

This request would look more like the standard browserify usage: `browserify entryPoint -t transforms`.

Start by reading issue #84 and reviewing how the service currently accepts browserify requests. Define how an entry point and transforms should be submitted without relying on a URL that exceeds request-size limits, while preserving the standard browserify-style behavior. Done means the service can bundle an entry point with transforms through a documented request path.

Written by the indexing model from the issue text.