psqlodbc - psqlodbc: Improve the handling of BYTEA type.

Log Message:
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Improve the handling of BYTEA type.

Modified Files:
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psqlodbc:
convert.c (r1.198 -> r1.199)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/convert.c?r1=1.198&r2=1.199)
version.h (r1.206 -> r1.207)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/version.h?r1=1.206&r2=1.207)