JS cleanup, more vactrak

- Wrote a silly/simple JS framework for routing/urls/etc
- Refactored a bunch of junk inside the admin views
- Refactored app.js
- Attempting to move into “frontend does the work”, mostly JS
templates/etc
- Refactored vac.js
- Fixed bug caused by javascript sucking a lot
- Added route for a single VacID info payload