EnsTestDB documentation.

BEGIN {
 warn <<ASDF;

  ******************************************************************************
  * This file (ensembl-external/modules/t/EnsTestDB.pm) is depracated
  * because it duplicates ensembl/modules/t/EnsTestDB.pm. The easiest
  * solution is to replace this file with a symlink to
  * ensembl/modules/t/EnsTestDB.pm
  ******************************************************************************

ASDF
    exit 1;
}