Back to regular install on Travis

Author: takluyver

.travis.yml

@@ -18,7 +18,7 @@ install:
   - pip install six
   # Travis needs to update pip/setuptools
   - pip install --upgrade setuptools pip
-  - pip install -e .
+  - pip install .
   - |
     if [[ "$TRAVIS_PYTHON_VERSION" == "2.7" ]]; then
       pip install doit==0.29.0