added a travis command to let tests pass

Author: oesteban

.travis.yml

@@ -23,6 +23,7 @@ before_install:
 - if $INSTALL_DEB_DEPENDECIES; then travis_retry sudo apt-get install -qq fsl-atlases;
   fi
 - if $INSTALL_DEB_DEPENDECIES; then source /etc/fsl/fsl.sh; fi
+- if $INSTALL_DEB_DEPENDECIES; then source /etc/afni/afni.sh; fi
 install:
 - conda update --yes conda
 - conda create -n testenv --yes pip python=$TRAVIS_PYTHON_VERSION