FIX: Use Locally-Hosted JavaScript Files

Our problems with the deployment server were caused by incorrectly
setting ALLOWED_HOSTS *and* how we were trying to use a CDN to host
our JavaScript files. I've removed the CDN, so this works now.

Closes #40

(cherry picked from commit 0bb944c6b5f51a393a3f669814ed258c421046a7)