Cleanup, style fixes, and refactoring.

++ OVERVIEW ++

+ Fixed some broken links in footer *(only http for certain links)*.
+ Removed e-mail address from logout link button. Can be reimplement later, but design needs to be considered.
+ Pages now display a proper title in the `<h1>` instead of the marketplace name.
+ iFrame autoheight now applies to the left nav.
+ Login and forgot password now look pretty, no min-height, no footer.
+ **Nav current almost works, except the first item (Overview).** *(Needs to be fixed still)*
+ When viewing a marketplace, the name of the marketplace displays, otherwise says Marketplaces.
+ Updated `test/integration/marketplaces_list.js` to look for the marketplace name in the nav.