- sort with key instead of cmp
- sorting once is enough
- use 0-based sequences, to allow using enumerate
- simplify dict creation
- word-wrap a bit
- simplify sequence declaration
- make it easier to navigate from steps to sequence and vice-versa


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@44640 20353a03-c40f-0410-a6d1-a30d3c3de9de