remove ruby-debu19 development dependency so tests can be run under ruby 1.8.7
remove ruby-debu19 development dependency so tests can be run under ruby 1.8.7

Baltazore/formtastic,Davidzhu001/formtastic,Guestfolio/formtastic,EndingChaung/formtastic,justinfrench/formtastic,justinfrench/formtastic,nishaya/formtastic,justinfrench/formtastic,ConferenceCloud/formtastic,paulodiovani/formtastic,thenthen8515/formtastic,sideci-sample/sideci-sample-formtastic,Davidzhu001/formtastic,ryanfox1985/formtastic,nishaya/formtastic,ConferenceCloud/formtastic,mikz/formtastic,ryanfox1985/formtastic,thenthen8515/formtastic,Guestfolio/formtastic,paulodiovani/formtastic,mikz/formtastic,ryanfox1985/formtastic,EndingChaung/formtastic