reconfigure build configs

.scrutinizer.yml

@@ -5,4 +5,4 @@ filter:
 tools:
     external_code_coverage:
         timeout: 600
-        runs: 1
+        runs: 5

.travis.yml

@@ -1,11 +1,17 @@
 language: python
+env:
+    - TOXENV=py27
+    - TOXENV=py33
+    - TOXENV=py34
+    - TOXENV=pypy
+    - TOXENV=pypy3
 install:
     - pip install tox
     - pip install coveralls
     - pip install scrutinizer-ocular
+    - pip install gevent
 script:
-    - rm .coverage
-    - tox
+    - tox -e $TOXENV
 after_script:
     - coveralls
     - ocular

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27, py33, py34, pypy
+envlist = py27, py33, py34, pypy, pypy3
 
 [testenv]
 setenv =