bug 593128, group by on collections
bug 593128, group by on collections

Witia1/olympia,andymckay/zamboni,crdoconnor/olympia,kumar303/zamboni,kmaglione/olympia,kumar303/addons-server,mdaif/olympia,andymckay/addons-server,ayushagrawal288/zamboni,jbalogh/zamboni,Nolski/olympia,diox/olympia,johancz/olympia,clouserw/zamboni,ayushagrawal288/zamboni,spasovski/zamboni,Prashant-Surya/addons-server,jpetto/olympia,Witia1/olympia,Jobava/zamboni,Joergen/olympia,Revanth47/addons-server,Prashant-Surya/addons-server,washort/zamboni,wagnerand/addons-server,ngokevin/zamboni,Joergen/olympia,koehlermichael/olympia,mstriemer/addons-server,eviljeff/olympia,lavish205/olympia,wagnerand/zamboni,wagnerand/olympia,Nolski/olympia,crdoconnor/olympia,yfdyh000/olympia,mstriemer/olympia,beni55/olympia,andymckay/olympia,jpetto/olympia,koehlermichael/olympia,psiinon/addons-server,elysium001/zamboni,mdaif/olympia,wagnerand/olympia,mstriemer/zamboni,diox/olympia,shahbaz17/zamboni,wagnerand/addons-server,Jobava/zamboni,eviljeff/olympia,mozilla/olympia,kmaglione/olympia,bqbn/addons-server,beni55/olympia,andymckay/olympia,wagnerand/zamboni,anaran/olympia,washort/zamboni,jpetto/olympia,mozilla/zamboni,Witia1/olympia,robhudson/zamboni,mstriemer/olympia,eviljeff/zamboni,yfdyh000/olympia,andymckay/addons-server,robhudson/zamboni,kumar303/olympia,ayushagrawal288/zamboni,wagnerand/addons-server,kmaglione/olympia,Prashant-Surya/addons-server,tsl143/zamboni,mudithkr/zamboni,anaran/olympia,Hitechverma/zamboni,Nolski/olympia,elysium001/zamboni,psiinon/addons-server,Joergen/zamboni,clouserw/zamboni,ddurst/zamboni,beni55/olympia,koehlermichael/olympia,kumar303/zamboni,Hitechverma/zamboni,tsl143/zamboni,bqbn/addons-server,tsl143/zamboni,mozilla/addons-server,aviarypl/mozilla-l10n-addons-server,johancz/olympia,kmaglione/olympia,mrrrgn/olympia,kumar303/zamboni,harikishen/addons-server,muffinresearch/addons-server,Jobava/zamboni,johancz/olympia,ingenioustechie/zamboni,atiqueahmedziad/addons-server,diox/zamboni,ddurst/zamboni,mstriemer/olympia,psiinon/addons-server,koehlermichael/olympia,mrrrgn/olympia,mdaif/olympia,mozilla/addons-server,ayushagrawal288/zamboni,mozilla/olympia,magopian/olympia,Joergen/olympia,muffinresearch/olympia,muffinresearch/olympia,Joergen/olympia,Jobava/zamboni,Witia1/olympia,jamesthechamp/zamboni,Joergen/zamboni,kumar303/zamboni,muffinresearch/addons-server,Joergen/zamboni,harikishen/addons-server,harikishen/addons-server,anaran/olympia,mstriemer/zamboni,Joergen/zamboni,muffinresearch/olympia,ingenioustechie/zamboni,luckylavish/zamboni,Nolski/olympia,wagnerand/olympia,mrrrgn/olympia,kumar303/olympia,mozilla/zamboni,aviarypl/mozilla-l10n-addons-server,shahbaz17/zamboni,Hitechverma/zamboni,ddurst/zamboni,bqbn/addons-server,Nolski/olympia,koehlermichael/olympia,mrrrgn/olympia,magopian/olympia,magopian/olympia,andymckay/olympia,Joergen/zamboni,lavish205/olympia,mdaif/olympia,clouserw/zamboni,harry-7/addons-server,beni55/olympia,wagnerand/zamboni,yfdyh000/olympia,luckylavish/zamboni,muffinresearch/olympia,spasovski/zamboni,jamesthechamp/zamboni,aviarypl/mozilla-l10n-addons-server,kumar303/olympia,mrrrgn/olympia,mstriemer/olympia,lavish205/olympia,mstriemer/addons-server,mstriemer/addons-server,harikishen/addons-server,atiqueahmedziad/addons-server,tsl143/addons-server,SuriyaaKudoIsc/olympia,andymckay/addons-server,eviljeff/olympia,muffinresearch/addons-server,beni55/olympia,Revanth47/addons-server,kmaglione/olympia,jpetto/olympia,mozilla/olympia,SuriyaaKudoIsc/olympia,mudithkr/zamboni,harry-7/addons-server,spasovski/zamboni,mozilla/zamboni,bqbn/addons-server,diox/zamboni,jamesthechamp/zamboni,muffinresearch/addons-server,wagnerand/zamboni,jasonthomas/zamboni,jamesthechamp/zamboni,luckylavish/zamboni,mozilla/olympia,atiqueahmedziad/addons-server,andymckay/olympia,ddurst/zamboni,tsl143/zamboni,psiinon/addons-server,kumar303/addons-server,elysium001/zamboni,johancz/olympia,robhudson/zamboni,diox/zamboni,shahbaz17/zamboni,tsl143/addons-server,crdoconnor/olympia,mozilla/addons-server,diox/olympia,jasonthomas/zamboni,jasonthomas/zamboni,jbalogh/zamboni,mudithkr/zamboni,spasovski/zamboni,kumar303/olympia,mudithkr/zamboni,aviarypl/mozilla-l10n-addons-server,eviljeff/olympia,luckylavish/zamboni,washort/zamboni,andymckay/addons-server,ngokevin/zamboni,clouserw/zamboni,eviljeff/zamboni,ingenioustechie/zamboni,jbalogh/zamboni,SuriyaaKudoIsc/olympia,anaran/olympia,Witia1/olympia,wagnerand/olympia,kumar303/addons-server,elysium001/zamboni,andymckay/zamboni,eviljeff/zamboni,crdoconnor/olympia,mozilla/zamboni,yfdyh000/olympia,mstriemer/addons-server,tsl143/addons-server,mstriemer/zamboni,harry-7/addons-server,jbalogh/zamboni,robhudson/zamboni,magopian/olympia,Joergen/olympia,Hitechverma/zamboni,muffinresearch/addons-server,mdaif/olympia,SuriyaaKudoIsc/olympia,Prashant-Surya/addons-server,washort/zamboni,shahbaz17/zamboni,mozilla/addons-server,ingenioustechie/zamboni,magopian/olympia,eviljeff/zamboni,harry-7/addons-server,lavish205/olympia,Revanth47/addons-server,jasonthomas/zamboni,diox/zamboni,Joergen/zamboni,muffinresearch/olympia,wagnerand/addons-server,tsl143/addons-server,johancz/olympia,atiqueahmedziad/addons-server,yfdyh000/olympia,Revanth47/addons-server,ngokevin/zamboni,diox/olympia,mstriemer/zamboni,kumar303/addons-server,crdoconnor/olympia,andymckay/zamboni