Don't convert surface ids if surface filter is for current tallies. Closes #157 on github.
Don't convert surface ids if surface filter is for current tallies. Closes #157 on github.

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