psqlodbc - psqlodbc: add support for returning right SQLSTATE from

Log Message:
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add support for returning right SQLSTATE from SQLGetDiagField and SQLGetDiagRec

Modified Files:
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psqlodbc:
connection.c (r1.133 -> r1.134)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/connection.c.diff?r1=1.133&r2=1.134)
environ.c (r1.56 -> r1.57)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/environ.c.diff?r1=1.56&r2=1.57)
statement.c (r1.111 -> r1.112)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/statement.c.diff?r1=1.111&r2=1.112)