Do not override collected resources
Do not override collected resources

overriding collection syntax does not work with
Ruby 1.9.3.

This commit removes collection overriding and replaces
it with the arrow syntax.
datacentred/puppet-nova,pllopis/puppet-nova,aimonb/puppet-nova,arnaudmorinol/puppet-nova,mgagne/puppet-nova,mgagne/puppet-nova,DarkHorseComics/puppet-nova,cristifalcas/puppet-nova,mgagne/puppet-nova,dprince/puppet-nova,DylanYu/puppet-nova,datacentred/puppet-nova,JioCloud/puppet-nova,aimonb/puppet-nova,JioCloud/puppet-nova,nhinds/puppet-nova,gwdg/puppet-nova,apenney/puppet-nova,aquto/puppet-nova,gwdg/puppet-nova,nhinds/puppet-nova,balle/puppet-nova,ody/puppet-nova,madkiss/puppet-nova,varunarya10/puppet-nova,javiplx/puppet-nova,stratustech/puppet-nova,balle/puppet-nova,varunarya10/puppet-nova,ody/puppet-nova,esteve/puppet-nova,apenney/puppet-nova,stratustech/puppet-nova,dprince/puppet-nova,aimonb/puppet-nova,aquto/puppet-nova,esteve/puppet-nova,larsks/puppet-nova,TelekomCloud/puppet-nova