fix wrong release version

_pytest/__init__.py

@@ -1,2 +1,2 @@
 #
-__version__ = '2.4.4'
+__version__ = '2.2.4'

setup.py

@@ -24,7 +24,7 @@ def main():
         name='pytest',
         description='py.test: simple powerful testing with Python',
         long_description = long_description,
-        version='2.4.4',
+        version='2.2.4',
         url='http://pytest.org',
         license='MIT license',
         platforms=['unix', 'linux', 'osx', 'cygwin', 'win32'],
@@ -70,4 +70,4 @@ def make_entry_points():
     return {'console_scripts': l}
 
 if __name__ == '__main__':
-    main()
+    main()