Fix for install_aliases() omitting ChainMap (issue #226)

Author: edschofield

docs/whatsnew.rst

@@ -5,6 +5,14 @@ What's New
 
 .. _whats-new-0.16.x:
 
+What's new in version 0.16.1 (unreleased)
+=========================================
+
+This is a minor bug-fix release:
+
+- Fix `from collections import ChainMap` after install_aliases() (issue #226)
+
+
 What's new in version 0.16.0 (2016-10-27)
 ==========================================
 

src/future/standard_library/__init__.py

@@ -180,6 +180,7 @@
 MOVES = [('collections', 'UserList', 'UserList', 'UserList'),
          ('collections', 'UserDict', 'UserDict', 'UserDict'),
          ('collections', 'UserString','UserString', 'UserString'),
+         ('collections', 'ChainMap', 'future.backports.misc', 'ChainMap'),
          ('itertools', 'filterfalse','itertools', 'ifilterfalse'),
          ('itertools', 'zip_longest','itertools', 'izip_longest'),
          ('sys', 'intern','__builtin__', 'intern'),