Updated #parseServer with latest Smack version which includes a fix.

git-svn-id: http://svn.igniterealtime.org/svn/repos/messenger/trunk@326 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/util/StringUtils.java

@@ -910,9 +910,6 @@ public class StringUtils {
         if (atIndex + 1 > XMPPAddress.length()) {
             return "";
         }
-        if (atIndex < 0) {
-            atIndex = 0;
-        }
         int slashIndex = XMPPAddress.indexOf("/");
         if (slashIndex > 0) {
             return XMPPAddress.substring(atIndex + 1, slashIndex);