Session Expiration

- [x] Javascript Session Prompt
- [x] Session Prompt Partial
- [x] Server Side Session Expiry
- [x] Session Expiry Page
- [ ] Session Expiry Page Content
- [ ] Session Prompt Content
Could use something like this to check time since page load and fire `setInterval` more regularly?

```javascript
function()
  var lol = Date.now();

  window.timeSincePageLoad = function() {
    return Date.now() - lol;
  }
})();
```