Multiview MB3 close disabled for ge cells fix

wb/lib/wb/src/wb_wge.cpp

@@ -79,13 +79,14 @@ void WGe::graph_init_cb( void *client_data)
 
 }
 
-void WGe::graph_close_cb( void *client_data)
+int WGe::graph_close_cb( void *client_data)
 {
   WGe *ge = (WGe *) client_data;
   if ( ge->modal)
     ge->terminated = 1;
   else
     delete ge;
+  return 1;
 }
 
 int WGe::wge_command_cb( void *ge_ctx, char *command)

wb/lib/wb/src/wb_wge.h

@@ -81,7 +81,7 @@ class WGe {
   void print();
 
   static void graph_init_cb( void *client_data);
-  static void graph_close_cb( void *client_data);
+  static int graph_close_cb( void *client_data);
   static int wge_command_cb( void *ge_ctx, char *command);
   static int wge_is_authorized_cb( void *ge_ctx, unsigned int access);
   static void message( void *ctx, char severity, const char *message);