Added Pandas to .travis.yml
Added Pandas to .travis.yml

kellyrowland/openmc,amandalund/openmc,mit-crpg/openmc,wbinventor/openmc,shikhar413/openmc,wbinventor/openmc,wbinventor/openmc,bhermanmit/openmc,paulromano/openmc,walshjon/openmc,mit-crpg/openmc,samuelshaner/openmc,shikhar413/openmc,shikhar413/openmc,walshjon/openmc,bhermanmit/openmc,paulromano/openmc,smharper/openmc,johnnyliu27/openmc,paulromano/openmc,walshjon/openmc,liangjg/openmc,liangjg/openmc,smharper/openmc,samuelshaner/openmc,kellyrowland/openmc,samuelshaner/openmc,amandalund/openmc,walshjon/openmc,smharper/openmc,johnnyliu27/openmc,amandalund/openmc,mjlong/openmc,paulromano/openmc,liangjg/openmc,wbinventor/openmc,amandalund/openmc,mit-crpg/openmc,johnnyliu27/openmc,samuelshaner/openmc,liangjg/openmc,mjlong/openmc,johnnyliu27/openmc,mit-crpg/openmc,shikhar413/openmc,smharper/openmc