[Docs] New testimonials and press coverage

Found on @spf13's Twitter.  :-)

Prevent the testimonial dates from wrapping.

Also fix a few minor problems to get the home page
to validate as proper HTML5.

docs/static/css/HPstyles.css

@@ -262,6 +262,7 @@ footer a:hover {
 
 .owl-carousel a {
     color: #243382;
+    white-space: nowrap;
 }
 
 .owl-carousel blockquote p {