Ruby isn't a requirement to work on the Sass files
Fix localhost link not turning into a link on Github
Remove clean-temp task

.sass-cache isn't generated by gulp-sass, so this task is no longer
needed. I may need it back in the future
Add the Susy grid system

Susy makes use of Sass Maps, which Libsass currently lacks. We have to
use the Ruby implementation until Libsass is updated.
Remove overly-large section titles from .gitignore
Create a more diverse font stack
Switch to Susy for wrapping content
Add Masthead that coveres the viewport

Needed to include the inuitcss reset to get rid of margin at the top
of the page.