a short test period to make sure qt142 is an adequate replacement.
Note #1: I changed it to install libqt.so.2.0. qt141 or newer are
required for some software (most notably kde). We missed the
chance to change the shlib number in qt141 so I'm doing it now.
Note #2: After talking with Peter Wemm, I decided not to add extra
-rpath directives. The fix for kdesupport and other build
problems are forthcoming in ld.
