Minor bug in parseSteps function- with the suggested fix:

The bug produces a warning: Undefined index 'something'.
Suggested Fix:
Looks like the old version of the wizard had a line that would take care of it but the line was lost in the new version. Putting the line back fixes the code:

before
...

    foreach ($steps as $key => $name) {
        if (is_array($name)) {
            $branch = '';   //<--this line was missing

... after