Add landing page and modify controller to render landing

hodor/controllers/__init__.pyc

hodor/controllers/index.py

hodor/controllers/printer.pyc

hodor/models/Printer.pyc

hodor/models/__init__.pyc

hodor/models/index.py

hodor/static/css/style.css

hodor/static/css/styles.css

hodor/static/img/hodor.png

hodor/static/js/app.js

hodor/static/js/modals.js

hodor/static/js/particles.js

hodor/static/particles.json

hodor/templates/index/index.html

hodor/templates/layout/layout.html

hodor/templates/layout/navigation.html

hodor/templates/printer/index.html

hodor/templates/printer/print.html