Replace plugin-generated projects/ with Markdown
Replace plugin-generated wg/ with Markdown
Replace plugin-generated departments/ w/ Markdown
Replace plugin-generated locations/ with Markdown
Replace plugin-generated snippets/ with Markdown
Adjust h1 style; remove hand-jammed <br/> tags
Convert index pages from Markdown to HTML

Also tweaks some styles to make it more presentable.
Merge pull request #5 from 18F/replace-index-pages

Replace plugin-generated index pages with Markdown