shell: Added Array.prototype.find polyfill
shell: Added Array.prototype.find polyfill

Closes #793
Reviewed-by: Stef Walter <8a7fbf0f15d3ad982af54ef28f5c117d2494b76c@redhat.com>

larskarlitski/cockpit,SotolitoLabs/cockpit,deryni/cockpit,cockpit-project/cockpit,denysvitali/cockpit,matobet/cockpit,kkaempf/cockpit,Thermionix/cockpit,fridex/cockpit,larskarlitski/cockpit,petervo/cockpit,haiyangd/cockpit_view,evol262/cockpit,nmav/cockpit,moraleslazaro/cockpit,Armstrong1992/cockpit,martinpitt/cockpit,vbatts/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,garrett/cockpit,darioajr/cockpit,mareklibra/cockpit,dperpeet/cockpit,larskarlitski/cockpit,zigitax/cockpit,zigitax/cockpit,xhad/cockpit,arilivigni/cockpit,mvollmer/cockpit,Scribery/cockpit,andreasn/cockpit,xhad/cockpit,firebitsbr/cockpit,larskarlitski/cockpit,mareklibra/cockpit,sgallagher/cockpit,mareklibra/cockpit,firebitsbr/cockpit,larsu/cockpit,evol262/cockpit,SotolitoLabs/cockpit,arilivigni/cockpit,cockpit-project/cockpit,sgallagher/cockpit,michalskrivanek/cockpit,stefwalter/cockpit,haiyangd/cockpit_view,cockpit-project/cockpit,larskarlitski/cockpit,vbatts/cockpit,fridex/cockpit,zigitax/cockpit,larsu/cockpit,mvollmer/cockpit,kkaempf/cockpit,sub-mod/cockpit,kkaempf/cockpit,nmav/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,xhad/cockpit,denysvitali/cockpit,michalskrivanek/cockpit,vbatts/cockpit,cockpituous/cockpit,martinpitt/cockpit,evol262/cockpit,stefwalter/cockpit,cockpit-project/cockpit,darioajr/cockpit,darioajr/cockpit,petervo/cockpit,jscotka/cockpit,jscotka/cockpit,deryni/cockpit,netzvieh/cockpit,Thermionix/cockpit,dperpeet/cockpit,Armstrong1992/cockpit,larskarlitski/cockpit,kkaempf/cockpit,deryni/cockpit,evol262/cockpit,dperpeet/cockpit,FireDrunk/cockpit,fridex/cockpit,moraleslazaro/cockpit,petervo/cockpit,moolitayer/cockpit,moraleslazaro/cockpit,denysvitali/cockpit,michalskrivanek/cockpit,moraleslazaro/cockpit,evol262/cockpit,vanloswang/cockpit,sub-mod/cockpit,SotolitoLabs/cockpit,garrett/cockpit,Scribery/cockpit,haiyangd/cockpit_view,sgallagher/cockpit,firebitsbr/cockpit,denysvitali/cockpit,mareklibra/cockpit,Thermionix/cockpit,andreasn/cockpit,vanloswang/cockpit,xhad/cockpit,deryni/cockpit,mvollmer/cockpit,deryni/cockpit,kkaempf/cockpit,larsu/cockpit,stefwalter/cockpit,michalskrivanek/cockpit,matobet/cockpit,harishanand95/cockpit,cockpit-project/cockpit,andreasn/cockpit,sgallagher/cockpit,zigitax/cockpit,harishanand95/cockpit,harishanand95/cockpit,nmav/cockpit,michalskrivanek/cockpit,vanloswang/cockpit,SotolitoLabs/cockpit,xhad/cockpit,martinpitt/cockpit,Armstrong1992/cockpit,garrett/cockpit,evol262/cockpit,arilivigni/cockpit,cockpituous/cockpit,larsu/cockpit,moolitayer/cockpit,larskarlitski/cockpit,matobet/cockpit,moolitayer/cockpit,arilivigni/cockpit,harishanand95/cockpit,moolitayer/cockpit,sgallagher/cockpit,netzvieh/cockpit,fridex/cockpit,nmav/cockpit,mareklibra/cockpit,stefwalter/cockpit,dperpeet/cockpit,maxamillion/cockpit,haiyangd/cockpit_view,michalskrivanek/cockpit,FireDrunk/cockpit,mareklibra/cockpit,maxamillion/cockpit,martinpitt/cockpit,petervo/cockpit,garrett/cockpit,firebitsbr/cockpit,denysvitali/cockpit,Scribery/cockpit,vbatts/cockpit,fridex/cockpit,stefwalter/cockpit,vbatts/cockpit,FireDrunk/cockpit,vanloswang/cockpit,dperpeet/cockpit,Thermionix/cockpit,arilivigni/cockpit,netzvieh/cockpit,sub-mod/cockpit,garrett/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,SotolitoLabs/cockpit,jscotka/cockpit,petervo/cockpit,maxamillion/cockpit,petervo/cockpit,Thermionix/cockpit,matobet/cockpit,Scribery/cockpit,haiyangd/cockpit_view,moolitayer/cockpit,sgallagher/cockpit,Scribery/cockpit,andreasn/cockpit,FireDrunk/cockpit,darioajr/cockpit,jscotka/cockpit,mareklibra/cockpit,sgallagher/cockpit,arilivigni/cockpit,andreasn/cockpit,Armstrong1992/cockpit,SotolitoLabs/cockpit,maxamillion/cockpit,sub-mod/cockpit,andreasn/cockpit,jscotka/cockpit,mvollmer/cockpit,Scribery/cockpit,dperpeet/cockpit,andreasn/cockpit,SotolitoLabs/cockpit,sub-mod/cockpit,deryni/cockpit,Thermionix/cockpit,cockpituous/cockpit,vbatts/cockpit,mvollmer/cockpit,harishanand95/cockpit,matobet/cockpit,netzvieh/cockpit,stefwalter/cockpit,harishanand95/cockpit,vanloswang/cockpit,Armstrong1992/cockpit,firebitsbr/cockpit,netzvieh/cockpit,vanloswang/cockpit,fridex/cockpit,larsu/cockpit,dperpeet/cockpit,matobet/cockpit,cockpituous/cockpit,harishanand95/cockpit,zigitax/cockpit,arilivigni/cockpit,xhad/cockpit,FireDrunk/cockpit,petervo/cockpit,nmav/cockpit,maxamillion/cockpit,stefwalter/cockpit,deryni/cockpit,xhad/cockpit,netzvieh/cockpit,darioajr/cockpit,jscotka/cockpit,vanloswang/cockpit,Scribery/cockpit,larsu/cockpit,michalskrivanek/cockpit