try to fix orca

Author: tdhopper

.travis.yml

@@ -4,10 +4,14 @@ python:
 notifications:
   email: true
 before_install:
-  - export PATH="$HOME/miniconda/bin:$PATH"
+  - export PATH="./.travis:$HOME/miniconda/bin:$PATH"
   - sudo apt-get -qq update
   - bash .travis/install_conda.sh
 install: "pip install --quiet -r requirements.txt"
+before_script:
+  - "export DISPLAY=:99.0"
+  - "sh -e /etc/init.d/xvfb start"
+  - sleep 3 # give xvfb some time to start
 script: make travis
 after_script:
   - echo "Rendered notebook http://nbviewer.jupyter.org/urls/s3.amazonaws.com/pythonplotbuilds/tdhopper/pythonplot.com/$TRAVIS_BUILD_NUMBER/$TRAVIS_JOB_NUMBER/Examples.$(git log -1 --pretty=format:'%h').ipynb"

.travis/install_conda.sh

@@ -5,6 +5,7 @@ hash -r
 $HOME/miniconda/bin/conda config --set always_yes yes --set changeps1 no
 $HOME/miniconda/bin/conda update -q conda
 $HOME/miniconda/bin/conda info -a
-$HOME/miniconda/bin/conda install --quiet pip readline r-essentials
-$HOME/miniconda/bin/conda install --quiet --channel r rpy2
-$HOME/miniconda/bin/conda install --quiet -c plotly plotly-orca
+conda install --quiet pip readline r-essentials
+conda install --quiet --channel r rpy2
+wget --quiet https://github.com/plotly/orca/releases/download/v1.2.1/orca-1.2.1-x86_64.AppImage -O orca.AppImage
+chmod +x orca.AppImage

.travis/orca

@@ -0,0 +1,2 @@
+#!/bin/bash
+xvfb-run -a ./orca.AppImage "$@"