Thread: stackbuilder - wizard: Use a timer to update the download progress

Log Message:
-----------
Use a timer to update the download progress dialogue, rather than doing it every N bytes. Also, display the download
speed.

Modified Files:
--------------
    wizard:
        App.cpp (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/stackbuilder/wizard/App.cpp.diff?r1=1.6&r2=1.7)
    wizard/include:
        App.h (r1.5 -> r1.6)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/stackbuilder/wizard/include/App.h.diff?r1=1.5&r2=1.6)