Added 'build_clib'; replaced 'install_py' and 'install_ext' with 'install_lib'.

command/__init__.py

@@ -8,9 +8,9 @@ __revision__ = "$Id$"
 __all__ = ['build',
            'build_py',
            'build_ext',
+           'build_clib',
            'install',
-           'install_py',
-           'install_ext',
+           'install_lib',
            'clean',
            'sdist',
           ]