Only use baseurl

Setting url in the config file and using it to load assets caused
localhost to pull assets from production, preventing changes from being
tested.
Conform to jekyll's sass directory conventions

These changes will allow jekyll to compile sass resources itself.
Replace donation button

Replace button to concluded gofundme campaign with an authorize.net
button

https://trello.com/c/1zCc29C8/4-add-live-donation-link-to-website
Merge branch 'authorize-net-payment' into gh-pages

Conflicts:
	_config.yml