After qmljsdebugger was moved to share/, the build order of
qmlobserver and qmljsdebugger had to be re-adjusted.

Reviewed-By: Lasse Holmstedt

Reviewed-by: Alessandro Portale

Called with crashed process and prompts the user to
choose between Qt Creator and Default Debugger.
Acked-by: Daniel Molkentin <daniel.molkentin@nokia.com>

now bin and share are not pegged to linking the executable any more,
but are proper subdirs targets of their own.
unforturnately, qmake is a bit tenacious, so we hack around a bit. :)

more or less in passing by, i removed some superfluous trailing slashes
and added path normalization as well.