增加日志

library/src/main/java/com/github/faucamp/simplertmp/io/RtmpConnection.java

@@ -193,6 +193,7 @@ public class RtmpConnection implements RtmpPublisher {
                 connectingLock.wait(5000);
             } catch (InterruptedException ex) {
                 // do nothing
+                ex.printStackTrace();
             }
         }
         if (!connected) {