Fix progress dialog when no number are provided

A first dialog show up telling that you have to enter some phone
number, but the dialog for message progress never disapear

Fix Issue #1

src/com/hectorone/multismssender/MultiSmsSender.java

@@ -446,6 +446,7 @@ public class MultiSmsSender extends Activity {
 			displayDialog(handler, DIALOG_PROGRESS_CANCEL, null);
 
 		} else {
+			displayDialog(handler, DIALOG_PROGRESS_CANCEL,null);
 			displayDialog(handler, DIALOG_NONUMBER, null);
 		}