Merge branch '226-wrong-schema'

* 226-wrong-schema:
  Fix schema number

Libs/DICOM/Core/ctkDICOMDatabase.cpp

@@ -448,7 +448,7 @@ QString ctkDICOMDatabase::schemaVersion()
   //   so that the ctkDICOMDatabasePrivate::filenames method
   //   still works.
   //
-  return QString("0.5.1");
+  return QString("0.5.2");
 };
 
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