* collectors now have a collect() method
* items have a runtest() method
* deprecated old run/join of collectors and
run/execute methods of items
--HG--
branch : trunk
* moving in test, misc, code, io directories and
py/__init__.py
* py/bin/_find.py does not print to stderr anymore
* a few fixes to conftest files in other dirs
some more fixes and adjustments pending
--HG--
branch : trunk