Reduce usage of modAbility to actual modification.  Queries for available/selected that are are not "actions" (do not process in the code parlance) are handled elsewhere.

Issue#: CODE-2465


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@23263 ef53c05b-3124-4d59-ae7d-fe3273f42be7