[WIP] work on menu bundle upgrade

                   
|Q            |A  |
|---          |---|
|Bug Fix?     |n  |
|New Feature? |n  |
|BC Breaks?   |n  |
|Deprecations?|n  |
|Tests Pass?  |n  |
|Fixed Tickets|   |
|License      |MIT|
|Doc PR       |   |
                   


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please do not commit commented out code.

to work on the upgrade towards knp menu 2.0, please do a pr against #203 - if you can keep the code style cleanups separately, we could just merge those cleanups which would be nice