Fixing bugs in RHEL6 rebase, applying fixes here as well
    resolves: bug#700870 freeradius not compiled with --with-udpfromto
    resolves: bug#753764 shadow password expiration does not work
    resolves: bug#712803 radtest script is not working with eap-md5 option
    resolves: bug#690756 errors in raddb/sql/postgresql/admin.sql template