Log Message:
Update to 1.2.0:

1.2.0
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* Revert "Issue #21750: mock_open.read_data can now be read from each \ 
instance, as it"

1.1.4
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* Add 2.6 back to classifiers
* Record sync point
* Issue #21750: mock_open.read_data can now be read from each instance, as it \ 
could in Python 3.3
* Issue #18622: unittest.mock.mock_open().reset_mock would recurse infinitely
* Folk should test 2.6 locally too
* Closes #279: setuptools.version is too new
* Support python 2.6

1.1.3
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* Update sync point and sync docs
* Issue #23661: unittest.mock side_effects can now be exceptions again
* Abort installation if the installer is using setuptools<17.1