merging from williamb1024's commits.

dist/js/bootstrap-dialog.js

@@ -183,6 +183,8 @@
         this.holdThisInstance();
     };
 
+    BootstrapDialog.BootstrapDialogModal = BootstrapDialogModal;
+
     /**
      *  Some constants.
      */

examples/assets/bootstrap-dialog/js/bootstrap-dialog.js

@@ -183,6 +183,8 @@
         this.holdThisInstance();
     };
 
+    BootstrapDialog.BootstrapDialogModal = BootstrapDialogModal;
+
     /**
      *  Some constants.
      */