1. Installing dynamic ldif-backend for MDS alpha release

1.1 env variables to be set up before installing ldif-backend
      $MDS_ROOT, $GLOBUS_FLAVOR
      add libtool's bin dir into $path


2. Modifying MDS alpha release to use dynamic ldif-backend

2.1 add libtool's lib dir into LD_LIBRARY_PATH in 
      $MDS_ROOT/libexec/grid-info-slapd
      $MDS_ROOT/libexec/grid-info-ldapsearch

2.2 modify
      $MDS_ROOT/etc/grid-info-site-slapd.conf
      $MDS_ROOT/etc/grid-info-resource-slapd.conf
    to add
      modulepath      /opt/globus-mds/install/openldap/libexec/openldap
      moduleload      back_ldif.la


