Update wizard.html

Updated wizard events.

* ```stepclick.fu.wizard``` to ```stepclicked.fu.wizard``` 
* Currently I'm not seeing a change event, but I did notice an actionclicked event. So I removed the change and added actionclicked with as best of a description as I can figure out from reading the source.
Merge pull request #595 from Garbee/3.0-docs/hotfix/wizard-events

Update wizard.html