Make sure attribute key is lowercase and fix bug when start and end element has different case
Make sure attribute key is lowercase and fix bug when start and end element has different case

git-svn-id: dfc057027cf3df7ad9997c472e9a22c506879ca2@2188 7b3f36aa-e6db-49c1-8b4c-66eac1997e64

etoile/StepChat