[-] Updated tox and travis configurations to check py2.7 and 3.6 and django 1.8-1.11

.travis.yml

@@ -1,7 +1,7 @@
 language: python
 
 python:
-  - "3.5"
+  - "3.6"
 
 branches:
   only:
@@ -12,13 +12,10 @@ env:
   - TOXENV=py27-django18
   - TOXENV=py27-django19
   - TOXENV=py27-django110
-  - TOXENV=py34-django18
-  - TOXENV=py34-django19
-  - TOXENV=py34-django110
-  - TOXENV=py35-django18
-  - TOXENV=py35-django19
-  - TOXENV=py35-django110
-  - TOXENV=py35-django111
+  - TOXENV=py36-django18
+  - TOXENV=py36-django19
+  - TOXENV=py36-django110
+  - TOXENV=py36-django111
 
 install:
   - pip install tox

tox.ini

@@ -1,27 +1,36 @@
 [tox]
 envlist =
+    begin
     py27-lint
-    py27-django{18,19,110},
-    py34-django{18,19,110},
-    py35-django{18,19,110,111},
+    py27-django{18,19,110}
+    py36-django{18,19,110,111}
+    coverage-report
 
 [testenv]
 deps=
-    django111: Django==1.11.1
-    django110: Django==1.10.3
-    django19: Django==1.9.2
-    django18: Django==1.8.9
-    coverage==4.0.3
+    django111: Django<2.0
+    django110: Django<1.11
+    django19: Django<1.10
+    django18: Django<1.9
+    coverage
     pillow
     ipdb
     -r{toxinidir}/requirements.txt
 
 commands=
-  coverage run --source={toxinidir} --omit='.tox/*' {toxinidir}/example/manage.py test --settings='settings-testing' categories
+  coverage run --source=categories --omit='.tox/*,example/*,*/tests/*' {toxinidir}/example/manage.py test --settings='settings-testing' categories
+
+[testenv:begin]
+commands = coverage erase
 
 [testenv:py27-lint]
 deps=
     flake8
 
 commands=
-  flake8 . --ignore=E501 --exclude=categories/south_migrations/,.tox/
+    flake8 . --ignore=E501 --exclude=build/,dist/,.tox/,doc_src
+
+[testenv:coverage-report]
+commands =
+    coverage report -m
+    coverage html