Merge pull request #34 from hugovk/patch-2

Add python_requires and classifier for Python 3.6

Author: agoode

setup.py

@@ -36,13 +36,19 @@
         'Operating System :: Microsoft :: Windows',
         'Operating System :: POSIX :: Linux',
         'Programming Language :: Python',
+        'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.6',
         'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Topic :: Scientific/Engineering :: Bio-Informatics',
     ],
+    python_requires='>=2.6, !=3.0.*, !=3.1.*, !=3.2.*',
     install_requires=[
         'Pillow',
     ],