Site Will Not Build

[meg-gutshall]

While checking a new PR, I realized that I couldn't get the site to execute a new build. It's really strange because bundle exec middleman serve works perfectly fine, but then bundle exec middleman build gets caught on the npm package moment called in source/javascripts/all.js.

Comparing the requirements in the all.js file to the package.json file, not all of the npm packages are installed there so the build is set up to fail every time.

I think we need to triage the site and decide what libraries we really need to keep and which we can abandon in favor of others that have arisen in the 5 years since this has been touched. Thoughts?