Disabling tox run from setup.py (as recommended from tox-dev) - enabling multiple python versions in travis conf file

Author: pgaref

.travis.yml

@@ -1,6 +1,11 @@
 language: python
 python:
-  - 2.7
+  - "2.7"
+  - "3.2"
+  - "3.3"
+  - "3.4"
+  - "3.5"
+  - "3.6"
 sudo: false
 before_install:
   - python --version

setup.py

@@ -60,10 +60,10 @@ def run_tests(self):
     include_package_data=True,
     platforms='any',
     test_suite='tests.test_parsers',
-    tests_require=['tox'],
-    cmdclass={'test': Tox},
-    # tests_require=['pytest', 'pytest-cov'],
-    # cmdclass={'test': PyTest},
+    # tests_require=['tox'],
+    # cmdclass={'test': Tox},
+    tests_require=['pytest', 'pytest-cov'],
+    cmdclass={'test': PyTest},
     install_requires=['beautifulsoup4 >= 4.5.3',
                       'httmock>=1.2.6',
                       'psutil>=5.1.3',