Remove unused dependencies and add support for Python 3.7.

Author: redtoad

setup.py

@@ -46,7 +46,6 @@ def run(self):
     cmdclass={'test': PyTest},
     tests_require=[
         'pytest>=2.0.0',
-        'six',
         'requests'
     ],
     entry_points={
@@ -69,6 +68,8 @@ def run(self):
         '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',
         'Topic :: Software Development :: Testing'
     ]
 )

tests/test_http.py

@@ -1,9 +1,6 @@
-import gzip
 import requests
-import six
 
 from pytest_localserver import http, plugin
-from pytest_localserver import VERSION
 
 
 # define test fixture here again in order to run tests without having to

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py26,py27,py33,py34,py35,py36
+envlist = py26,py27,py33,py34,py35,py36,py37
 recreate = True
 
 [tox:hudson]