travis & tox: drop python 3.3 with broken tests; add 3.5+ & pypy3

Author: danchr

.travis.yml

@@ -12,12 +12,18 @@ matrix:
       env: TOXENV=py27-djangocurr
     - python: "2.7"
       env: TOXENV=quality
-    - python: "3.3"
-      env: TOXENV=py33
     - python: "3.4"
       env: TOXENV=py34
+    - python: "3.5"
+      env: TOXENV=py35
+    - python: "3.6"
+      env: TOXENV=py36
+    - python: "3.7-dev"
+      env: TOXENV=py37
     - python: "pypy"
       env: TOXENV=pypy
+    - python: "pypy3"
+      env: TOXENV=pypy3
 
 install:
   - pip install tox codecov coveralls

tox.ini

@@ -1,10 +1,12 @@
 [tox]
-envlist = begin,py{27,py,33,34},py27-django{lts,curr},end,quality
+envlist = begin,py{27,py,py3,34,35,36,37},py27-django{lts,curr},end,quality
 
 [tox:travis]
 2.7 = begin,py27,py27-django{lts,curr},end,quality
-3.3 = py33
 3.4 = py34
+3.5 = py35
+3.6 = py36
+3.7 = py37
 
 [testenv]
 deps =