Use to_object_name instead of lower
Use to_object_name instead of lower

With similar functions in this module and elsewhere in the app, we use
to_object_name to modify case, instead of `lower()`. Make these
methods consistent with others.

maurizi/otm-core,recklessromeo/otm-core,maurizi/otm-core,RickMohr/otm-core,maurizi/otm-core,recklessromeo/otm-core,recklessromeo/otm-core,clever-crow-consulting/otm-core,RickMohr/otm-core,clever-crow-consulting/otm-core,RickMohr/otm-core,maurizi/otm-core,clever-crow-consulting/otm-core,clever-crow-consulting/otm-core,recklessromeo/otm-core,RickMohr/otm-core