Shelve extension [was: qct 0.7 released]

[Wichmann, Mats D]

>So I will need to upgrade to Qt4, which will break other apps 
>built around Qt3?

they should be able to co-exist

multiple versions of libraries are usually possible if they
are versioned, but in this case it's even easier as the Qt
library naming scheme has changed completely between 3 and 4,
from one library libqt-mt to several, libQtCore, libQtNetwork, etc.