Recognize comments: <!-- -->. JM-984

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@7205 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/wildfire/nio/XMLLightweightParser.java

@@ -189,6 +189,10 @@ class XMLLightweightParser {
                     status = XMLLightweightParser.TAIL;
                     depth--;
                 }
+                else if (ch == '!') {
+                    // This is a <! (comment) so ignore it
+                    status = XMLLightweightParser.INSIDE;
+                }
                 else {
                     depth++;
                 }