Travis build should actually work now

.travis.yml

@@ -1,7 +1,7 @@
 language: python
 python: 3.4
 install:
-    - pip install -e .
+    - pip install -e .[dev]
     - pip install coverage
     - pip install coveralls
 script: coverage run --source=gro_state --omit=*test*,*migrations* manage.py -d test gro_state.farms