refactor out all other templates besides simple.
Update README with other init branches
remove ref to app-table.css in _base
Merge branch 'master' of github.com:nprapps/app-template
Rename simple.html to index.html.
Merge branch 'master' into init-table

Conflicts:
	app.py
	templates/index.html
	www/css/app-table.min.css