Fix that opacity slider

Tom

2014-11-13 11e5e5d409e6c80617b3569199e404c8e4e44e06

 src/main/java/com/gitblit/wicket/pages/ComparePage.java

@@ -117,6 +117,9 @@
               fromCommit.getName(), toCommit.getName(), imageExtensions);

         final DiffOutput diff = DiffUtils.getDiff(r, fromCommit, toCommit, DiffOutputType.HTML, handler);
         if (handler.getImgDiffCount() > 0) {
            addBottomScript("scripts/imgdiff.js"); // Tiny support script for image diffs
         }

         // add compare diffstat
         int insertions = 0;