Adds bootstrap 2 spans/rows to project layout

Removes layout-related CSS styling from project image because Bootstrap
mostly takes care of it.

“.projects .record .image img” also removed because it doesn’t actually
target the images in the list of projects view.  While changing to
“.projects .record img” adds the styling, I tend to think it looks
better without it.
Small edits to divs

No visible changes, just cleaning up a bit.
Merge pull request #242 from danfowler/responsive-fix-for-projects-page

Responsive fix for projects page