Added toast, and some more todo

I decided to go with toast for the css framework. It's super light
and seems easy enough to use and change. I renamed the folder holding
the css and other resources from assests to resources. I had to change
the constants.php file to reconcile this change.

I got rid of bootstrap, and the bootstrap javascript files. It just
seemed like more than I needed.

One thing I will miss about bootstrap is the fixed at the top navbar,
this is the next thing on my todo.