pgsql-server: Add pgevent, with docs explaining out to install it on

Log Message:
-----------
Add pgevent, with docs explaining out to install it on Win32.

Modified Files:
--------------
    pgsql-server/doc/src/sgml:
        installation.sgml (r1.202 -> r1.203)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/src/sgml/installation.sgml.diff?r1=1.202&r2=1.203)
    pgsql-server/src/bin:
        Makefile (r1.44 -> r1.45)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/Makefile.diff?r1=1.44&r2=1.45)

Added Files:
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    pgsql-server/src/bin/pgevent:
        MSG00001.bin (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pgevent/MSG00001.bin?rev=1.1&content-type=text/x-cvsweb-markup)
        Makefile (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pgevent/Makefile?rev=1.1&content-type=text/x-cvsweb-markup)
        README (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pgevent/README?rev=1.1&content-type=text/x-cvsweb-markup)
        pgevent.c (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pgevent/pgevent.c?rev=1.1&content-type=text/x-cvsweb-markup)
        pgevent.def (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pgevent/pgevent.def?rev=1.1&content-type=text/x-cvsweb-markup)
        pgmsgevent.h (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pgevent/pgmsgevent.h?rev=1.1&content-type=text/x-cvsweb-markup)
        pgmsgevent.mc (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pgevent/pgmsgevent.mc?rev=1.1&content-type=text/x-cvsweb-markup)
        pgmsgevent.rc (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pgevent/pgmsgevent.rc?rev=1.1&content-type=text/x-cvsweb-markup)