Replaced categories with events
Event signup flow

Outlined in
https://docs.google.com/drawings/d/1wE97FTFb-ZOQQCOfOOrinoIeUuxAMqdUu1Mk
5MD9xfs/edit

New pages:
-listings.php
-vo-detail.php

Listings format will be the general display for when events are listed,
factored by how many results are displayed. Currently used in homepage
and listing pages. Slightly modified display for the dashboard but
almost similar markup.

Added link to fontawesome library in header