Fix typo

Author: Evan Borgstrom

.travis.yml

@@ -23,10 +23,10 @@ matrix:
       env: DJANGO=Django==1.8
 
     - python: 3.5
-      env: DJANGO=Django=1.6
+      env: DJANGO=Django==1.6
 
     - python: 3.5
-      env: DJANGO=Django=1.7
+      env: DJANGO=Django==1.7
 
 install:
   - pip install -q -e .