this merge contains:
* a new plugin architecture
* a pluginized pytest core
* many pytest related refactorings
* refactorings/streamlining of pytest's own tests
--HG--
branch : trunk
nicely for common tedious causes of skipping:
import a module and checking it has a certain
version. usage example:
docutils = py.test.importorskip(docutils, minversion="0.4")
* used new helper and cleanup skipping logic in py lib
--HG--
branch : trunk
* 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
hpk