Added Python 3.6+ note to setup.py and README (fixes #278) (#279)

* updated README

* updated setup.py

* updated classifiers

* updated version

README.rst

@@ -5,6 +5,10 @@ roswire
 
 .. image:: https://travis-ci.org/ChrisTimperley/roswire.svg?branch=master
     :target: https://travis-ci.org/ChrisTimperley/roswire
+.. image:: https://badge.fury.io/py/roswire.svg
+    :target: https://badge.fury.io/py/roswire
+.. image:: https://img.shields.io/pypi/pyversions/roswire.svg
+    :target: https://pypi.org/project/roswire
 
 
 ROSWire is a Python library for static and dynamic analysis of
@@ -36,6 +40,8 @@ Features
 Installation
 ------------
 
+roswire requires Python 3.6+
+
 To avoid interfering with the rest of your system (i.e., to avoid Python's
 equivalent of DLL hell), we strongly recommend that
 ROSWire is installed within a

setup.py

@@ -11,7 +11,7 @@
 setup(
     name='roswire',
     version=__version__,
-    python_requires='>=3.5',
+    python_requires='>=3.6',
     description='An API for testing and mutating ROS systems.',
     author='Chris Timperley',
     author_email='christimperley@googlemail.com',
@@ -40,7 +40,6 @@
         'Natural Language :: English',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7'
     ],

src/roswire/version.py

@@ -1 +1 @@
-__version__ = '0.0.3'
+__version__ = '0.0.4'