44117: ALF-16979 - Invalid JSON template is produced when 'Infinity' or '-Infinity' values are rendered by ?c FreeMarker built-in. Also fixes number output when rendered by JSONConversionComponent.propertyToJSON() Java backed JSON output.
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@44119 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261