Updated release notes with one more bug fix.
Updated release notes with one more bug fix.

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