2.8.1-20180323142543Z-92c7a9bb3cf74524398a7d5ae7b8d69eecae7406

Upgrade stepup-middleware-client-bundle to 2.3.2

This fixes the bug described in Pivotal, in short the middleware bundle
performed an assertion on a no longer existing class in the Stepup
bundle. This validation was redundant and has been removed in release
2.3.2.

https://www.pivotaltracker.com/story/show/156226909