Fixed deprecated method calls in ConfiguratorController
minor #109 Fixed deprecated method calls in ConfiguratorController (kix)

This PR was merged into the 2.3.x-dev branch.

Discussion
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Fixed deprecated method calls in ConfiguratorController

Fixes related to ```FormInterface``` deprecations between 2.2 and 2.3

Commits
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b0000c8 Fixed deprecated method calls in ConfiguratorController