update js in footer, add max-width to img

bootstrap.css

@@ -6,7 +6,7 @@
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Designed and built with all the love in the world @twitter by @mdo and @fat.
- * Date: Fri Dec  9 11:32:45 PST 2011
+ * Date: Fri Dec  9 12:09:50 PST 2011
  */
 html, body {
   margin: 0;
@@ -127,6 +127,8 @@ sub {
   bottom: -0.25em;
 }
 img {
+  max-width: 100%;
+  height: auto;
   border: 0;
   -ms-interpolation-mode: bicubic;
 }