Update cPython official cPython support (#36)

* Remove support for 2.6, 3.{2,3}

* Add python 3.7 support

* Update CHANGELOG

* Update CHANGELOG

Author: Will Myers

.travis.yml

@@ -1,12 +1,10 @@
 language: python
 python:
-  - "2.6"
   - "2.7"
-  - "3.2"
-  - "3.3"
   - "3.4"
   - "3.5"
   - "3.6"
+  - "3.7"
 install:
   - "pip install flake8==3.3.0"
 script: python setup.py test

CHANGELOG.md

@@ -1,5 +1,6 @@
 Current Version
-  -
+  - Add official support for Python 3.7
+  - Drop official support for Python 2.6, 3.2, 3.3
 
 2.7.0 June 21, 2018
   - Added optional `time_field` argument to `client.accounts.transactions`

README.rst

@@ -12,7 +12,7 @@ touch <https://www.usebutton.com/contact>`__.
 Supported runtimes
 ^^^^^^^^^^^^^^^^^^
 
--  cPython ``2.6``, ``2.7``, ``3.2``, ``3.3``, ``3.4``, ``3.5``, ``3.6``
+-  cPython ``2.7``, ``3.4``, ``3.5``, ``3.6``, ``3.7``
 
 Dependencies
 ^^^^^^^^^^^^
@@ -423,7 +423,7 @@ Contributing
 *  Installing locally: ``python setup.py install``
 *  Running tests: ``python setup.py test`` (you'll need to ``pip install flake8==3.3.0``)
 *  Running lint directly: ``flake8 pybutton``
-*  Running tests on all versions: ``tox`` (need to ``pip install tox`` and something like ``pyenv local 2.7.10 2.6.9 3.1.5 3.3.6 3.4.6 3.5.3 3.6.0`` if using ``pyenv``)
+*  Running tests on all versions: ``tox`` (need to ``pip install tox`` and something like ``pyenv local 2.7.10 3.4.6 3.5.3 3.6.0`` if using ``pyenv``)
 
 .. |Build Status| image:: https://travis-ci.org/button/button-client-python.svg?branch=master
    :target: https://travis-ci.org/button/button-client-python

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py26, py27, py33, py34, py35, py36
+envlist = py27, py34, py35, py36, py37
 skip_missing_interpreters = True
 
 [testenv]