Opening shell silently fails
Created originally on Bitbucket by roh01
qtlib.configureshell assumes that xterm is always available on Linux to launch shells. This is not true on my Fedora 16 so that "Open terminal" always fails silently.
In qtlib.openshell, I think that the return value of QProcess.startDetached should be checked and a warning submitted to the user. This would encourage him to properly configure its shell.