Remove export DISPLAY statement (CI still failing intermittently).
@@ -6,7 +6,6 @@ python:
services:
- xvfb
before_install:
-- export DISPLAY=:99.0
- sudo apt-get update
- if [[ "$TRAVIS_PYTHON_VERSION" == 2* ]]; then wget http://repo.continuum.io/miniconda/Miniconda-3.7.0-Linux-x86_64.sh
-O miniconda.sh; else wget http://repo.continuum.io/miniconda/Miniconda3-3.7.0-Linux-x86_64.sh
