Revert testing for python 3.6

Due to travis issue:

travis-ci/travis-ci#4990

Author: crucialfelix

.travis.yml

@@ -3,7 +3,6 @@ sudo: false
 env:
   - TOX_ENV=py27-flake8
   - TOX_ENV=py34-flake8
-  - TOX_ENV=py36-flake8
   - TOX_ENV=py27-dj17
   - TOX_ENV=py27-dj18
   - TOX_ENV=py27-dj19
@@ -14,11 +13,6 @@ env:
   - TOX_ENV=py34-dj19
   - TOX_ENV=py34-dj110
   - TOX_ENV=py34-dj111
-  - TOX_ENV=py36-dj17
-  - TOX_ENV=py36-dj18
-  - TOX_ENV=py36-dj19
-  - TOX_ENV=py36-dj110
-  - TOX_ENV=py36-dj111
 install:
  - pip install -r requirements-test.txt
 script:

tox.ini

@@ -6,8 +6,8 @@
 ;
 [tox]
 envlist =
-  {py27,py34,py36}-flake8,
-  {py27,py34,py36}-{dj17,dj18,dj19,dj110,dj111}
+  {py27,py34}-flake8,
+  {py27,py34}-{dj17,dj18,dj19,dj110,dj111}
 
 
 [testenv]
@@ -38,10 +38,10 @@ commands = flake8 ajax_select tests example
 ;   flake8
 ; commands = flake8 ajax_select tests example
 
-[testenv:py36-flake8]
-deps =
-  flake8
-commands = flake8 ajax_select tests example
+; [testenv:py36-flake8]
+; deps =
+;   flake8
+; commands = flake8 ajax_select tests example
 
 ; [testenv:py37-flake8]
 ; deps =