pginstaller - pginst: Use LoginUser() and CreateProcessAsUser() when the

Log Message:
-----------
Use LoginUser() and CreateProcessAsUser() when the CA is launched as Local System, because CreateProcessWithLogonW()
causesaccess denied. 

Also, assume terminal services is not running if the question for it returns "module not found" - which *should* mean
thatthere is no TS installed... 

Modified Files:
--------------
    pginst/ca:
        pginstca.c (r1.75 -> r1.76)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/ca/pginstca.c.diff?r1=1.75&r2=1.76)
        pginstca.h (r1.5 -> r1.6)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/ca/pginstca.h.diff?r1=1.5&r2=1.6)
        user.c (r1.17 -> r1.18)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/ca/user.c.diff?r1=1.17&r2=1.18)
    pginst/lang:
        de.xml (r1.17 -> r1.18)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/lang/de.xml.diff?r1=1.17&r2=1.18)
        fr.xml (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/lang/fr.xml.diff?r1=1.7&r2=1.8)
        pt_br.xml (r1.15 -> r1.16)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/lang/pt_br.xml.diff?r1=1.15&r2=1.16)
        sv.xml (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pginstaller/pginst/lang/sv.xml.diff?r1=1.4&r2=1.5)