fix(accordion): make deprecated controller work with 1.3.x
fix(accordion): make deprecated controller work with 1.3.x

Closes #4574

looker/bootstrap,pdsoftplan/bootstrap,burlhock/bootstrap,byronigoe/bootstrap,mabi/bootstrap,davious/angular-ui-bootstrap,christor/bootstrap,caoruiy/bootstrap,realityking/ui-bootstrap,wesleycho/bootstrap,vfiles/bootstrap,Servoy/bootstrap,angular-ui/bootstrap,angular-ui/bootstrap,deeg/bootstrap,SystemDisc/bootstrap,Lincoln-xzc/angular-ui-bootstrap,fpipita/bootstrap,Lincoln-xzc/angular-ui-bootstrap,infowrap/bootstrap,292388900/bootstrap,shiftagent/ui-bootstrap,RobJacobs/bootstrap,tmcgee123/bootstrap,burlhock/bootstrap,Kpler/bootstrap,filso/bootstrap,BookingBug/bootstrap,Foxandxss/bootstrap,sullivanpt/bootstrap,matteopic/bootstrap,shadowdaw/bootstrap,Foxandxss/bootstrap,RobJacobs/bootstrap,guaido79/bootstrap,caoruiy/bootstrap,shootermv/bootstrap,shiftagent/ui-bootstrap,filso/bootstrap,benhalverson/bootstrap,benhalverson/bootstrap,Servoy/bootstrap,shadowdaw/bootstrap,fpipita/bootstrap,matteopic/bootstrap,shootermv/bootstrap,justin-john/bootstrap-1,benhalverson/bootstrap,christor/bootstrap,oliversalzburg/bootstrap,realityking/ui-bootstrap,SystemDisc/bootstrap,looker/bootstrap,Kpler/bootstrap,mabi/bootstrap,292388900/bootstrap,infowrap/bootstrap,byronigoe/bootstrap,connyay/bootstrap,pdsoftplan/bootstrap,guaido79/bootstrap,tmcgee123/bootstrap,BookingBug/bootstrap,deeg/bootstrap,justin-john/bootstrap-1,davious/angular-ui-bootstrap,oliversalzburg/bootstrap,connyay/bootstrap,sullivanpt/bootstrap,icfantv/bootstrap,vfiles/bootstrap,wesleycho/bootstrap,benhalverson/bootstrap,icfantv/bootstrap