conda didnt help, removed the last changes

Author: djarecka

.travis.yml

@@ -33,7 +33,7 @@ install:
   conda config --add channels conda-forge &&
   conda update --yes conda &&
   conda update --all -y python=$TRAVIS_PYTHON_VERSION &&
-  conda install -y nipype traits &&
+  conda install -y nipype &&
   rm -r /home/travis/miniconda/lib/python${TRAVIS_PYTHON_VERSION}/site-packages/nipype* &&
   pip install -r requirements.txt &&
   pip install -e .[$NIPYPE_EXTRAS]; }

requirements.txt

@@ -1,6 +1,7 @@
 numpy>=1.6.2
 scipy>=0.11
 networkx>=1.7
+traits>=4.3
 python-dateutil>=1.5
 nibabel>=2.0.1
 future>=0.15.2