Fix another issue with station details not being saved

Due to  what appears to be  a Qt bug, any  in progress user edit  to a
table  fields is  not  updated  in the  underlying  data models  until
QDialog::accept() is  called, this means that  model validation before
calling QDialog::accept() is tricky.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5164 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

Configuration.cpp

@@ -1490,6 +1490,13 @@ void Configuration::impl::accept ()
     {
       return;			// not accepting
     }
+
+  QDialog::accept();            // do this before accessing custom
+                                // models so that any changes in
+                                // delegates in views get flushed to
+                                // the underlying models before we
+                                // access them
+
   sync_transceiver (true);	// force an update
 
   //
@@ -1637,8 +1644,6 @@ void Configuration::impl::accept ()
     }
  
   write_settings ();		// make visible to all
-
-  QDialog::accept();
 }
 
 void Configuration::impl::reject ()