Optimize with r.js using full Exhibit source tree

Trying to use pre-bundled Exhibit as an element of Viewshare optimized scripts was failing to resolve dependencies properly.   Bringing in the whole tree and adjusting the build manifests now allows r.js to bundle fully, with some clever library declarations and re-mapping (note that separate jQuery libraries causes a huge headache; substituting Viewshare's for Exhibit's makes everything neater).

This tree comes from the requirejs branch of Zepheira's Exhibit3 repo: https://github.com/zepheira/exhibit3/commits/requirejs at revision 9619b1635d777366e21f4aefb890254fa0b2e0d9