pginstaller - pginst: Add Brazilian Portuguese translation (not

Log Message:
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Add Brazilian Portuguese translation (not complete, but getting there).

Fix langauge dependency so we don't have to rebuild everything even when nothing has changed..

Modified Files:
--------------
    pginst:
        Makefile (r1.28 -> r1.29)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/Makefile.diff?r1=1.28&r2=1.29)
    pginst/lang:
        Makefile.lang (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/lang/Makefile.lang.diff?r1=1.2&r2=1.3)

Added Files:
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    pginst/lang:
        pt_br.xml (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/lang/pt_br.xml?rev=1.1&content-type=text/x-cvsweb-markup)
        pt_br_welcome.rtf (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/lang/pt_br_welcome.rtf?rev=1.1&content-type=text/x-cvsweb-markup)