Better formating for static errors and warnings (issue217084)

Reviewers: MikeSamuel, Description: * Displays errors in list if there was an error * Displays warnings in a display:none div otherwise Please review this at http://codereview.appspot.com/217084/show Affected files: M java/gadgets/src/main/java/org/apache/shindig/gadgets/servlet/CajaCon

Re: Better formating for static errors and warnings (issue217084)

http://codereview.appspot.com/217084/diff/1/2 File java/gadgets/src/main/java/org/apache/shindig/gadgets/servlet/CajaContentRewriter.java (right): http://codereview.appspot.com/217084/diff/1/2#newcode157 java/gadgets/src/main/java/org/apache/shindig/gadgets/servlet/CajaContentRewriter.java:157: