Various changes.

Various changes, including:

* Add Sass configuation file.
* Convert CSS stylesheets to Sass stylesheets.
* Add images from the MiniCard WordPress theme.
* Modify Sass stylesheets to use the images from MiniCard.
* Modify `default` Jekyll layout HTML to use the new Sass stylesheets.
Vertically center the elements in the header.
Add the footer text to the config file.
Update stylesheet to use normalize.css.

See http://git.io/normalize for more information on normailize.css.
Add Infinise Go! as a submodule.
Add "Blog" page.

Also, update "Home" page.
Refactor CSS for better clarity.

Rename #content to .post and rename #content_wrapper to #content.
Separate the layout CSS from the styling CSS.
Change colour of the current page navigation link.
Add "Contact" page.
Remove the footer.
Add "Lorem Ipsum!" blog post.
Update "Welcome to Jekyll!" blog post.
Tweak the Sass CSS stylesheet.
Update "Blog" page.
Add icons.
Update navigation bar.

Update navigation bar to intelligently select the currently "active"
navigation link based on either the page URL or the page's categories.
Fix page ordering issue.
Update "Projects" and "Blog" pages.
Tweak the layout and style.