add Support.Tickle for simple traversal class
add Support.Tickle for simple traversal class

darcs-hash:20061018044304-1a7c6-89182360c595ed5a6b23eae1a7cfbe08ed149ece

kirbyfan64/jhc,kirbyfan64/jhc,kirbyfan64/jhc,kirbyfan64/jhc