Renamed setup_up to initialize_mpi.
Renamed setup_up to initialize_mpi.

lilulu/openmc,sxds/opemmc,mit-crpg/openmc,samuelshaner/openmc,paulromano/openmc,mjlong/openmc,shikhar413/openmc,keadyk/openmc_mg_prepush,shenqicang/openmc,wbinventor/openmc,amandalund/openmc,amandalund/openmc,lilulu/openmc,paulromano/openmc,smharper/openmc,mit-crpg/openmc,smharper/openmc,walshjon/openmc,wbinventor/openmc,liangjg/openmc,lilulu/openmc,sxds/opemmc,walshjon/openmc,wbinventor/openmc,nhorelik/openmc,nhorelik/openmc,samuelshaner/openmc,bhermanmit/cdash,keadyk/openmc_mg_prepush,amandalund/openmc,amandalund/openmc,johnnyliu27/openmc,shenqicang/openmc,shikhar413/openmc,kellyrowland/openmc,shikhar413/openmc,wbinventor/openmc,mjlong/openmc,shikhar413/openmc,samuelshaner/openmc,liangjg/openmc,smharper/openmc,smharper/openmc,liangjg/openmc,walshjon/openmc,johnnyliu27/openmc,mit-crpg/openmc,kellyrowland/openmc,bhermanmit/openmc,keadyk/openmc_mg_prepush,johnnyliu27/openmc,samuelshaner/openmc,paulromano/openmc,liangjg/openmc,walshjon/openmc,bhermanmit/openmc,paulromano/openmc,mit-crpg/openmc,johnnyliu27/openmc