Add prose pages to projects tab to explain more in-depth projects.

This commit introduces the most important set of links for the
projects tab. The html pages in this commit provide more in-
depth information on the projects than could be gleaned from
their github READMEs. Also this commit introduces a favicon. For
the hell of it.
Merge pull request #6 from jhcarr/add_projects_tab

Add prose pages to projects tab to explain more in-depth projects.