pginstaller - pginst: Add PostGIS.

Log Message:
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Add PostGIS.

Modified Files:
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    pginst:
        README (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/README.diff?r1=1.10&r2=1.11)
    pginst/ca:
        pginstca.c (r1.70 -> r1.71)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/ca/pginstca.c.diff?r1=1.70&r2=1.71)
    pginst/lang:
        sv.xml (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/lang/sv.xml.diff?r1=1.1&r2=1.2)
    pginst/txt:
        welcome.rtf (r1.11 -> r1.12)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/txt/welcome.rtf.diff?r1=1.11&r2=1.12)
    pginst/wxs:
        dialogs.wxs (r1.41 -> r1.42)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/wxs/dialogs.wxs.diff?r1=1.41&r2=1.42)
        pginst.wxs (r1.103 -> r1.104)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/wxs/pginst.wxs.diff?r1=1.103&r2=1.104)