Reduce score font size in Schedule template
Add Open Graph metadata
Add blue Mystic logo for Open Graph
Multiple style changes

- Always show more link on new line
- Change border color and add border radius for images in posts
- Adjust header sizes on smaller devices
- Make single column layouts extend to right edge
- Modify Join button on register template
- Make background image smaller on short monitors
Fix Open Graph bugs

- Add Open Graph prefix to html element
- Ensure we don't write out an empty description