Adapt to 512 byte blocksize

git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1652 fd1c0b69-5d68-47f5-910c-86182ebb6ecd
Split strings at firth separator substring

git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1653 fd1c0b69-5d68-47f5-910c-86182ebb6ecd
Documentation updates

git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1654 fd1c0b69-5d68-47f5-910c-86182ebb6ecd
Add dependencies

git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1655 fd1c0b69-5d68-47f5-910c-86182ebb6ecd
added from recipe

git-svn-id: svn://svn.code.sf.net/p/amforth/code/trunk@1656 fd1c0b69-5d68-47f5-910c-86182ebb6ecd
Merge branch 'hq'