Basic Support for the Forth201x traverse-wordlist word set.

The proposal was acceppted at the forth 2013 meeting. 


git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1453 fd1c0b69-5d68-47f5-910c-86182ebb6ecd
Merge branch 'hq'