pgbouncer - pgbouncer: win32: errno fixes - switch errors around to

Log Message:
-----------
win32: errno fixes

- switch errors around to correspond to what gets returned
- somewhat working strerror()

Modified Files:
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pgbouncer/win32:
compat_win32.h (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/win32/compat_win32.h.diff?r1=1.2&r2=1.3)
win32service.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/win32/win32service.c.diff?r1=1.2&r2=1.3)