Make 12.2.0 releasev12.2.0

Do the opposite of what other people are doing and make menuconfig.py
Python 2-compatible. Turns out it's not that tricky after all, and it
makes everything consistently Python 2/3-compatible and streamlines
things.

 - Commit 41b5891 ("menuconfig: Get rid of 'nonlocal'")

 - Commit b2e211d ("menuconfig: Fall back on getch() when get_wch()
   isn't available")

 - Commit c3162be ("menuconfig: Only decode curses.erasechar() on Python
   3")

 - Commit fe6ed99 ("menuconfig: Import print_function for Python 2
   compatibility")

 - Commit c209188 ("menuconfig: Have hashbang point to 'python' instead
   of 'python3'")

 - Commit d577865 ("Remove Python 3 menuconfig special-casing from
   Makefile patch")

 - Commit 319f7f0 ("Update various comments now that menuconfig is
   Python 2-compatible")

 - Commit 5fbd70e ("Update setup.py now that menuconfig is Python
   2-compatible")

Also investigate exactly what the Python version requirements are and tweak
and document things a bit:

 - Commit e0baa79 ("Tweak python_requires to 2.7/3.2+")

 - Commit 3a772a6 ("Add a section on version compatibility to the
   README")

3 files changed, 3 insertions, 3 deletions

diff --git a/README.rst b/README.rst
index 62d1b83..83563c7 100644
--- a/README.rst
+++ b/README.rst
@@ -96,7 +96,7 @@ Python 2 and Python 3. Previously, ``menuconfig.py`` only ran under Python 3
 that your ``PATH`` includes the directory where the executables end up. You can
 list the installed files with ``pip(3) show -f kconfiglib``.
 
-All releases have a corresponding tag in the git repository, e.g. ``v12.1.0``
+All releases have a corresponding tag in the git repository, e.g. ``v12.2.0``
 (the latest version).
 
 `Semantic versioning <http://semver.org/>`_ is used. There's been
diff --git a/kconfiglib.py b/kconfiglib.py
index dcf4e49..4805f01 100644
--- a/kconfiglib.py
+++ b/kconfiglib.py
@@ -546,7 +546,7 @@ from glob import iglob
 from os.path import dirname, exists, expandvars, islink, join, realpath
 
 
-VERSION = (12, 1, 0)
+VERSION = (12, 2, 0)
 
 
 # File layout:
diff --git a/setup.py b/setup.py
index 484de11..b1cca58 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ import setuptools
 setuptools.setup(
     name="kconfiglib",
     # MAJOR.MINOR.PATCH, per http://semver.org
-    version="12.1.0",
+    version="12.2.0",
     description="A flexible Python Kconfig implementation",
 
     # Make sure that README.rst decodes on Python 3 in environments that use