Prepare the 1.1.6 release.

Testing Done:
CI went green here:
  https://travis-ci.org/pantsbuild/pex/builds/125955261

Bugs closed: 245, 247

Reviewed at https://rbcommons.com/s/twitter/r/3766/

CHANGES.rst

@@ -2,6 +2,20 @@
 CHANGES
 =======
 
+-----
+1.1.6
+-----
+
+This release is a quick fix for a regression that inadvertently went out in 1.1.5 (Issue #243).
+
+* Fix the ``bdist_pex`` ``setuptools`` command to work for python2.
+  `#246 <https://github.com/pantsbuild/pex/pull/246>`_
+  `Fixes #243 <https://github.com/pantsbuild/pex/issues/243>`_
+
+* Upgrade pex dependencies on ``setuptools`` and ``wheel``.
+  `#244 <https://github.com/pantsbuild/pex/pull/244>`_
+  `Fixes #238 <https://github.com/pantsbuild/pex/issues/238>`_
+
 -----
 1.1.5
 -----

pex/version.py

@@ -1,7 +1,7 @@
 # Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).
 # Licensed under the Apache License, Version 2.0 (see LICENSE).
 
-__version__ = '1.1.5'
+__version__ = '1.1.6'
 
 SETUPTOOLS_REQUIREMENT = 'setuptools>=2.2,<20.11'
 WHEEL_REQUIREMENT = 'wheel>=0.24.0,<0.30.0'