Prepare for 4.0.0 release

Author: cjw296

CHANGELOG.rst

@@ -1,3 +1,8 @@
+4.0.0
+-----
+
+- No Changes from 4.0.0b1.
+
 4.0.0b1
 -------
 

mock/__init__.py

@@ -7,7 +7,7 @@
 import mock.mock as _mock
 from mock.mock import *
 
-__version__ = '4.0.0b1'
+__version__ = '4.0.0'
 version_info = tuple(int(p) for p in
                      re.match(r'(\d+).(\d+).(\d+)', __version__).groups())