Update release notes

git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@21942 ef53c05b-3124-4d59-ae7d-fe3273f42be7
Inner Sea Bestiary SOURCESHORT is ISB

git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@21943 ef53c05b-3124-4d59-ae7d-fe3273f42be7