Basic logo and favicon

- Also updated font to Varela(vs. Varela Round)
- Some minor layout tweaks to accomdate the logo

This is pretty basic and the favicon is a bit naff, but it's something. Soon, some considerations will be need to made for increased vertical real-estate consumption, but here it is:
![] (https://db.tt/Vu3vWu7t)

Addresses #15