style cleanup
move freedom.js -> entry.js

change custom channel API to have 1 less step.
Allow freedom to request chrome:// URLs.
update demo for new channel / relative stuff.
Merge branch 'master' of github.com:UWNetworksLab/freedom
Revert "Add "chrome" protcol. For FF extensions."

This reverts commit bc4a9a162e4f71b5ca85ad6ca5b038d5d4b3c26e.