Issue #371: instructing setup.py to install the xml files in setuptools.command

--HG--
branch : distribute
extra : rebase_source : 3d0a26ca9a25c2e7467c6ffb515d0cb92f2f8173

setup.py

@@ -170,7 +170,7 @@ dist = setup(
     test_suite = 'setuptools.tests',
     src_root = src_root,
     packages = find_packages(),
-    package_data = {'setuptools':['*.exe']},
+    package_data = {'setuptools':['*.exe'], 'setuptools.command':['*.xml']},
 
     py_modules = ['pkg_resources', 'easy_install', 'site'],