Create a script to convert old export sheets to FreeMarker
Issue#: CODE-2624


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@24268 ef53c05b-3124-4d59-ae7d-fe3273f42be7
Document FreeMarker template usage
* Add info on the conversion script.
Issue#: DOCS-289


git-svn-id: svn+ssh://svn.code.sf.net/p/pcgen/code/Trunk@24269 ef53c05b-3124-4d59-ae7d-fe3273f42be7