Update dicom tables when database directory changes

Fixes commontk#427

Author: pieper

Libs/DICOM/Widgets/ctkDICOMBrowser.cpp

@@ -355,6 +355,7 @@ void ctkDICOMBrowser::setDatabaseDirectory(const QString& directory)
 
   // update the button and let any connected slots know about the change
   d->DirectoryButton->setDirectory(directory);
+  d->dicomTableManager->updateTableViews();
   emit databaseDirectoryChanged(directory);
 }