[ENH] Rearrange wizard bar buttons, so they remain fixed  while navigating back and forth.
Also separate Cancel from Save and Continue to avoid problems with varying text size in the Continue button (called Finish in last step)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@47546 b456876b-0849-0410-b77d-98878d47e9d5