Add pass-through for --harmony_collections
Add pass-through for --harmony_collections

Necessary to use Mocha with contracts.coffee
joshski/mocha,GabrielNicolasAvellaneda/mocha,kevinburke/mocha,mbovel/mocha,mponizil/mocha,santiagoaguiar/mocha,ajaykodali/mocha,mysterycommand/mocha,jasonkarns/mocha,outsideris/mocha,jkresner/mocha,jkresner/mocha,sergeydt/mocha,igwejk/mocha,pumpupapp/mocha,hashcube/mocha,npmcomponent/visionmedia-mocha,menelaos/mocha-solarized,apkiernan/mocha,Hacker0x01/mocha,a8m/mocha,cleberar38/mocha,boneskull/mocha,hashcube/mocha,rstacruz/mocha,GabrielNicolasAvellaneda/mocha,pumpupapp/mocha,Shyp/mocha,joshski/mocha,Phoenixmatrix/mocha,DeNA/mocha,jasonkarns/mocha,ryanshawty/mocha,jjoos/mocha,rlugojr/mocha,hoverduck/mocha,rstacruz/mocha,mponizil/mocha,mysterycommand/mocha,boneskull/mocha,pandeysoni/mocha,antoval/mocha,KevinTCoughlin/mocha,kolodny/mocha,aaroncrows/mocha,aaroncrows/mocha,beni55/mocha,duncanbeevers/mocha,tinganho/mocha,luxe-eng/valet-express.mocha,KevinTCoughlin/mocha,netei/mocha,GerHobbelt/mocha,tinganho/mocha,geometrybase/mocha,nexdrew/mocha,phated/mocha,rlugojr/mocha,igwejk/mocha,upfrontIO/mocha,npmcomponent/visionmedia-mocha,outsideris/mocha,villesau/mocha,nexdrew/mocha,Khan/mocha,mbovel/mocha,airportyh/mocha,hoverduck/mocha,domenic/mocha,GranitB/mocha,benvinegar/mocha,nightwatchjs/mocha-nightwatch,IveWong/mocha,mochajs/mocha,nightwatchjs/mocha-nightwatch,woodyrew/mocha,ianwremmel/mocha,irnc/mocha,imsobear/mocha,node-rookie/mocha,airportyh/mocha,kolodny/mocha,cleberar38/mocha,rstacruz/mocha,TimothyGu/mocha,villesau/mocha,aaroncrows/mocha,Hacker0x01/mocha,moander/mocha,kyroskoh/mocha,ianwremmel/mocha,ajaykodali/mocha,ilkkao/co-mocha,mponizil/mocha,JohnnyEstilles/mocha,nexdrew/mocha,pandeysoni/mocha,kolodny/mocha,Phoenixmatrix/mocha,adamgruber/mocha,youprofit/mocha,ELLIOTTCABLE/mocha,woodyrew/mocha,rlugojr/mocha,ryanshawty/mocha,antoval/mocha,GerHobbelt/mocha,kyroskoh/mocha,wltsmrz/mocha,jkresner/mocha,beni55/mocha,benvinegar/mocha,upfrontIO/mocha,hoverduck/mocha,geometrybase/mocha,moander/mocha,upfrontIO/mocha,adamgruber/mocha,node-rookie/mocha,tswaters/mocha,mysterycommand/mocha,beni55/mocha,ryanshawty/mocha,kevinburke/mocha,ilkkao/co-mocha,JohnnyEstilles/mocha,kevinburke/mocha,verkkokauppacom/mocha,sul4bh/mocha,glenjamin/mocha,tinganho/mocha,gaye/mocha,node-rookie/mocha,geometrybase/mocha,ilkkao/co-mocha,michaelBenin/mocha,jjoos/mocha,jbnicolai/mocha,nightwatchjs/mocha-nightwatch,tswaters/mocha,jasonkarns/mocha,irnc/mocha,gaye/mocha,Shyp/mocha,jbnicolai/mocha,boneskull/mocha,phated/mocha,cleberar38/mocha,santiagoaguiar/mocha,apkiernan/mocha,papandreou/mocha,Hacker0x01/mocha,sergeydt/mocha,beatfactor/mocha,IveWong/mocha,a8m/mocha,ianwremmel/mocha,KevinTCoughlin/mocha,IveWong/mocha,ELLIOTTCABLE/mocha,Phoenixmatrix/mocha,pandeysoni/mocha,DeNA/mocha,netei/mocha,glenjamin/mocha,tswaters/mocha,JohnnyEstilles/mocha,imsobear/mocha,hackreactor/mocha,woodyrew/mocha,mbovel/mocha,GabrielNicolasAvellaneda/mocha,menelaos/mocha-solarized,beatfactor/mocha,duncanbeevers/mocha,imsobear/mocha,Khan/mocha,benvinegar/mocha,verkkokauppacom/mocha,joshski/mocha,mochajs/mocha,ajaykodali/mocha,papandreou/mocha,luxe-eng/valet-express.mocha,GranitB/mocha,charlie77/mocha,wltsmrz/mocha,diydyq/mocha,phated/mocha,Shyp/mocha,irnc/mocha,a8m/mocha,youprofit/mocha,villesau/mocha,menelaos/mocha-solarized,domenic/mocha,antoval/mocha,youprofit/mocha,verkkokauppacom/mocha,mochajs/mocha,jjoos/mocha,adamgruber/mocha,GerHobbelt/mocha,apkiernan/mocha,luxe-eng/valet-express.mocha,gaye/mocha,Khan/mocha,sul4bh/mocha,charlie77/mocha,hoverduck/mocha,TimothyGu/mocha,diydyq/mocha,hackreactor/mocha,ELLIOTTCABLE/mocha,moander/mocha,beatfactor/mocha,jbnicolai/mocha,diydyq/mocha,kyroskoh/mocha,GranitB/mocha,netei/mocha,hashcube/mocha,DeNA/mocha,pumpupapp/mocha,santiagoaguiar/mocha,charlie77/mocha,wltsmrz/mocha,sul4bh/mocha,michaelBenin/mocha