Create Rake task to run guard.
Modify design for overall layout.

- Add picture to the header.
- Move the site name and picture to middle.
- Move the nav bar into separate responsive section.
- Include Google Font (Source Sans Pro).
- Fix issues with the index page showing a post.
- Remove use of frontmatter on default layout.
Update nav to show selected when on index.

For some reason, the only way to use the liquid
templating to run the if/else in the default
layout view is to hardcode the HTML in the if/else
blocks. It does not seem to process them when using
the Slim templating engine.

- Update CSS styling for the selected span class.
- Add if/else around / route to show/hide link.
Add views for each page.

Each view includes placeholder text for now. More
content will be added.

- Create views for each nav item.
Add style class to center content in divs.

- Center all content on non-index views.
- Modify wording slightly until actual content is added.