Adds some logging when there is a problem connecting (connection failed).

src/net/java/sip/communicator/impl/protocol/jabber/ProtocolProviderServiceJabberImpl.java

@@ -666,6 +666,8 @@ private void connectAndLogin(SecurityAuthority authority,
 
             if (addrs == null || addrs.length == 0)
             {
+                logger.error("No server addresses found");
+
                 fireRegistrationStateChanged(
                     getRegistrationState(),
                     RegistrationState.CONNECTION_FAILED,
@@ -1144,6 +1146,8 @@ else if (tlsRequired)
             // addConnectionListener is not handled properly
             disconnectAndCleanConnection();
 
+            logger.error("Connection not established, server not found!");
+
             fireRegistrationStateChanged(getRegistrationState(),
                 RegistrationState.CONNECTION_FAILED,
                 RegistrationStateChangeEvent.REASON_SERVER_NOT_FOUND, null);