d3.js correctly recognizes heatmap files
d3.js heatmap will now only load once
Redesigned the top menu on the home screen of the website
Redesigned top menu to include dropdown menus for every category which has multiple links in it, added dividers to the drop down lists
Merge pull request #11 from UPDDI/Issue-#81-(from-server)

Merge fixes for Issue #11
Merge remote-tracking branch 'remotes/origin/master' into d3-heatmap