stackbuilder - wizard: Handle the (erroneous) case where a circular

Log Message:
-----------
Handle the (erroneous) case where a circular dependency is present in the application data.

Modified Files:
--------------
wizard:
App.cpp (r1.9 -> r1.10)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/stackbuilder/wizard/App.cpp.diff?r1=1.9&r2=1.10)
AppList.cpp (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/stackbuilder/wizard/AppList.cpp.diff?r1=1.6&r2=1.7)
wizard/include:
App.h (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/stackbuilder/wizard/include/App.h.diff?r1=1.7&r2=1.8)