Update to Github Pages 22

* github-pages (22 > 21)
  Changelog: https://github.com/github/pages-gem/releases
* jekyll-sass-converter (1.2.0 > 1.1.0)
* jekyll-sitemap (0.5.1 > 0.5.0)
* sass (3.3.14 > 3.3.12)
* posix-spawn (0.3.9 > 0.3.8)
* gemoji (2.0.1 > 2.0.0)
Ignore Sass Cache folder
Update Github-pages to v23

* github-pages (23 > 22)
  Changelog: https://github.com/github/pages-gem/releases
* activesupport (4.1.5 > 4.1.4)
* gemoji (2.1.0 > 2.0.1)
* jekyll-redirect-from (0.6.0 > 0.4.0)
* jekyll-watch (1.1.0 > 1.0.0)
* sass (3.4.1 > 3.3.14)
  Changelog:
  https://github.com/sass/sass/blob/stable/doc-src/SASS_CHANGELOG.md
* tzinfo (1.2.2 > 1.2.1)
Add Normalize.css to reset browser elements
Add Guard and Live Reload
Update coffee-script-source, sass, foreman

* foreman (0.75.0 > 0.74.0)
* guard-jekyll-plus (1.4.10 > 1.4.9)
* coffee-script-source (1.8.0 > 1.7.1)
* minitest (5.4.1 > 5.4.0)
* sass (3.4.2 > 3.4.1)
Update Sass variables per latest version of mockups
Stub out major pages and update navigation links accordingly
Fix home page call to action link and styling
Split out base and navigation styles to separate stylesheets
Add responsive mixins
Add Flexbox layout
Temporarily remove slider from home page
adjust call to actions
Clean up home page, style navigation footer, add social media icons
Add Location page
Adjust flexbox layout to correct sidebar navigation
Add coloring to mobile menu link
fix footer spacing
Rename home-navigation to main-navigation