tox.ini: use pip install in init setup

Author: manu-chroma

tox.ini

@@ -25,12 +25,16 @@ deps =
 
 commands =
   py{27,33,35,36}-unit: python setup.py test
-  py34-unit: coverage run setup.py test
-  py{27,33,34,35,36}-lint: flake8 schema_salad setup.py
+  py{27,33,35,36}-lint: flake8 schema_salad setup.py
 
 whitelist_externals =
   py{27,33,34,35,36}-lint: flake8
 
+[testenv:py34-unit]
+commands = 
+  pip install .
+  coverage run setup.py test
+
 [testenv:py35-mypy2]
 commands = make mypy2
 whitelist_externals = make