Fix pybabel and tox installation order.

Author: pricco

.travis.yml

@@ -28,6 +28,4 @@ env:
 install: pip install -U tox
 language: python
 python: 3.5
-script:
-- pybabel compile -D pyschool -d learnregex/locale -f --statistics
-- tox -e ${TOXENV}
+script: tox -e ${TOXENV}

tox.ini

@@ -13,6 +13,7 @@ deps =
     -r{toxinidir}/requirements_dev.pip
 commands =
     pip install -U pip
+    pybabel compile -D pyschool -d learnregex/locale -f --statistics
     py.test --basetemp={envtmpdir}
 
 ; If you want to make tox run the tests with the same versions, create a