libpqtypes - libpqtypes: bug fix in datetime.c, out-of-range time_t

Log Message:
-----------
bug fix in datetime.c, out-of-range time_t values not 0-basing month value for use with struct tm

Modified Files:
--------------
libpqtypes:
configure.ac (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/libpqtypes/libpqtypes/configure.ac.diff?r1=1.3&r2=1.4)
libpqtypes/src:
datetime.c (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/libpqtypes/libpqtypes/src/datetime.c.diff?r1=1.3&r2=1.4)