Update FAQ to match corrections

Changed wording per Vanessa's recommendations.
Add links back to About/Our Model.

Probably made other small changes so the CSS could modify the caption.
Add Moxie definition at the top
Change message to "Application closed"
Update Brain Trust section.

Add classes for css markup.

Add header.
Add images and update Carousel CSS. CSS update.

Add problem and our-model images to repository.

Update Carousel CSS to move text to right, button to left, and make carousel
images more transparent.

Small changes and refactorings of CSS in general.