Try installing package on Travis before testing

Author: takluyver

.travis.yml

@@ -7,9 +7,9 @@ python:
   - 3.4
   - 3.3
   - 2.7
-# command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
-#install: pip install nose
-# command to run tests, e.g. python setup.py test
+
+install: pip install .
+
 script:  nosetests
 
 addons: