Merge pull request #218 from afif-elghraoui/master

override abstract method close() in CRAMReferenceSequenceFile

uk/ac/sanger/artemis/components/alignment/CRAMReferenceSequenceFile.java

@@ -107,5 +107,8 @@ import uk.ac.sanger.artemis.util.OutOfRangeException;
     public void reset()
     {
     }
-    
-  }
\ No newline at end of file
+
+    public void close()
+    {
+    }
+  }