qt33 to ($binary)-qt4 and adjust dependencies accordingly. This
avoids conflicts once X11BASE has been changed to /usr/local and
incidentally makes the naming scheme of the qt4 executables in ports
equal to that of the Fedora Core and Debian packages.
-Fix categories which got mixed up during juggling with different
repos.
-Remove NO_FILTER_SHLIBS, which disappeared shortly before Qt4 was
committed.
Noticed by: erwin, pav