Fix merging bug where downstream items somtimes got ignored if they appear after an upstream-only item. Also, reduce the severity of the validation error if a tech-domain is not recognised on a non-Foundation package.
import sys; sys.__plen = len(sys.path)
./4Suite_XML-1.0.egg
./Amara-1.0.egg
./Distutils-1.0.2
./docutils-1.0.egg
./epydoc-1.0.egg
./Jinja-1.0.egg
./logilab-common-0.32.0
./lxml-1.0.egg
./mocker-0.10.1
./nose-1.0.egg
./path-2.2
./psyco-1.6
./Pygments-1.0.egg
./pylint-0.14.0
./PyRTF-0.45
./PyXML-1.0.egg
./setuptools-1.0.egg
./simplejson-1.0.egg
./Sphinx-1.0.egg
./ZSI-1.0.egg
import sys; new=sys.path[sys.__plen:]; del sys.path[sys.__plen:]; p=getattr(sys,'__egginsert',0); sys.path[p:p]=new; sys.__egginsert = p+len(new)