make iBatis connection object static

git-svn-id: svn+ssh://svn.internal.sanger.ac.uk/repos/svn/pathsoft/artemis/trunk@10269 ee4ac58c-ac51-4696-9907-e4b3aa274f04

uk/ac/sanger/artemis/util/DatabaseDocument.java

@@ -98,7 +98,7 @@ public class DatabaseDocument extends Document
   private JdbcDAO jdbcDAO = null;
 
   /** iBatis DAO */
-  private IBatisDAO connIB = null;
+  private static IBatisDAO connIB = null;
 
   private ByteBuffer[] gff_buffer;