Skip models that do not respond to :display_name
Skip models that do not respond to :display_name

It seems that some models may use display_name() as private method
for their own thing.

skateman/manageiq,lpichler/manageiq,mzazrivec/manageiq,gmcculloug/manageiq,jrafanie/manageiq,mzazrivec/manageiq,djberg96/manageiq,djberg96/manageiq,hstastna/manageiq,kbrock/manageiq,billfitzgerald0120/manageiq,skateman/manageiq,djberg96/manageiq,billfitzgerald0120/manageiq,lpichler/manageiq,ManageIQ/manageiq,ManageIQ/manageiq,mzazrivec/manageiq,hstastna/manageiq,hstastna/manageiq,NickLaMuro/manageiq,gmcculloug/manageiq,lpichler/manageiq,jvlcek/manageiq,djberg96/manageiq,billfitzgerald0120/manageiq,jvlcek/manageiq,hstastna/manageiq,jrafanie/manageiq,agrare/manageiq,mzazrivec/manageiq,skateman/manageiq,chessbyte/manageiq,jrafanie/manageiq,gmcculloug/manageiq,kbrock/manageiq,NickLaMuro/manageiq,chessbyte/manageiq,d-m-u/manageiq,jrafanie/manageiq,chessbyte/manageiq,gmcculloug/manageiq,agrare/manageiq,jvlcek/manageiq,agrare/manageiq,ManageIQ/manageiq,d-m-u/manageiq,billfitzgerald0120/manageiq,d-m-u/manageiq,skateman/manageiq,ManageIQ/manageiq,kbrock/manageiq,d-m-u/manageiq,chessbyte/manageiq,lpichler/manageiq,jvlcek/manageiq,NickLaMuro/manageiq,NickLaMuro/manageiq,kbrock/manageiq,agrare/manageiq