Bio/Index/Abstract: Fixed uninitialized warning from pack_record
Bio/Assembly/Singlet: Get End from parent sequence when locatable sequence
can't figure it out in _seq_to_singlet
Bio/SearchIO/blasttable: Recover conserved value from %positives
when possible, so the program don't assume "conserved == identical"
Bio/Index/Blast: Fixed _index_file to adjust filehandle position
when reading '\r\n' lines in Windows (length() differs from byte length)