Add debug info in travis build

.travis.yml

@@ -8,13 +8,15 @@ services:
 before_install:
 - export PIP_USE_MIRRORS=true
 - export PIP_INDEX_URL=https://simple.crate.io/
+- phantomjs --version
 - phantomjs --webdriver= &
 install:
 - pip install terrarium boto
 - terrarium key requirements-test.txt
 - terrarium --target froideenv --remote-key-format "u/stwe/froideenv/%(arch)s-%(python_vmajor)s.%(python_vminor)s-%(digest)s" install requirements-test.txt || (wget "http://resources.opendatalabs.org.s3.amazonaws.com/u/stwe/froideenv/`terrarium key requirements-test.txt`" ; terrarium --no-upload --s3-bucket "" --target froideenv --storage-dir . install requirements-test.txt)
 - source froideenv/bin/activate
-- pip install -e .
+- which python
+- python setup.py develop --prefix=`pwd`/froideenv
 script:
 - make test
 branches: