Added schema version in logs

src/main/java/fr/osug/DOIApplication.java

@@ -5,6 +5,7 @@ package fr.osug;
 
 import ch.qos.logback.classic.Level;
 import fr.osug.doi.AbstractPipeline;
+import fr.osug.doi.Const;
 import fr.osug.doi.DOIConfig;
 import fr.osug.doi.GeneratePipeline;
 import fr.osug.doi.Paths;
@@ -65,9 +66,11 @@ public class DOIApplication {
 
         logger.info("Default Charset=" + Charset.defaultCharset());
 
-        // mail throw IllegalStateException:
+        // may throw IllegalStateException:
         final String basePath = Paths.DIR_BASE;
         logger.info("Base Path=" + basePath);
+        
+        logger.info("Datacite Schema version: " + Const.SCHEMA_VERSION);
     }
 
     @PreDestroy