* rename, cleanup and document runtest hooks

* factor runner code into pytest_runner plugin
* cleanup setupstate handling

--HG--
branch : trunk

py/test/plugin/pytest_xfail.py

@@ -10,7 +10,7 @@ example:
 """
 import py
 
-def pytest_item_makereport(__call__, item, excinfo, when, outerr):
+def pytest_runtest_makereport(__call__, item, excinfo, when, outerr):
     if hasattr(item, 'obj') and hasattr(item.obj, 'func_dict'):
         if 'xfail' in item.obj.func_dict:
             res = __call__.execute(firstresult=True)