Collection.add signature fix
Collection.add signature fix

http://backbonejs.org/#Collection-add - "Returns the added (or preexisting, if duplicate) models."
use-strict/DefinitelyTyped,zensh/DefinitelyTyped,nfriend/DefinitelyTyped,duongphuhiep/DefinitelyTyped,abbasmhd/DefinitelyTyped,greglockwood/DefinitelyTyped,omidkrad/DefinitelyTyped,sledorze/DefinitelyTyped,KonaTeam/DefinitelyTyped,donnut/DefinitelyTyped,EnableSoftware/DefinitelyTyped,billccn/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,sledorze/DefinitelyTyped,HereSinceres/DefinitelyTyped,Dashlane/DefinitelyTyped,mszczepaniak/DefinitelyTyped,jbrantly/DefinitelyTyped,musakarakas/DefinitelyTyped,Pro/DefinitelyTyped,jasonswearingen/DefinitelyTyped,eugenpodaru/DefinitelyTyped,georgemarshall/DefinitelyTyped,gedaiu/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,Pro/DefinitelyTyped,ashwinr/DefinitelyTyped,gildorwang/DefinitelyTyped,optical/DefinitelyTyped,Pipe-shen/DefinitelyTyped,innerverse/DefinitelyTyped,minodisk/DefinitelyTyped,laco0416/DefinitelyTyped,adammartin1981/DefinitelyTyped,philippstucki/DefinitelyTyped,evandrewry/DefinitelyTyped,mattblang/DefinitelyTyped,michalczukm/DefinitelyTyped,Karabur/DefinitelyTyped,zuzusik/DefinitelyTyped,shlomiassaf/DefinitelyTyped,onecentlin/DefinitelyTyped,Fraegle/DefinitelyTyped,bpowers/DefinitelyTyped,scriby/DefinitelyTyped,LordJZ/DefinitelyTyped,wcomartin/DefinitelyTyped,egeland/DefinitelyTyped,jccarvalhosa/DefinitelyTyped,mattblang/DefinitelyTyped,EnableSoftware/DefinitelyTyped,biomassives/DefinitelyTyped,johan-gorter/DefinitelyTyped,nakakura/DefinitelyTyped,jiaz/DefinitelyTyped,Karabur/DefinitelyTyped,elisee/DefinitelyTyped,zhiyiting/DefinitelyTyped,jsaelhof/DefinitelyTyped,progre/DefinitelyTyped,paulmorphy/DefinitelyTyped,Ridermansb/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,timjk/DefinitelyTyped,nmalaguti/DefinitelyTyped,mattanja/DefinitelyTyped,lightswitch05/DefinitelyTyped,pocke/DefinitelyTyped,micurs/DefinitelyTyped,QuatroCode/DefinitelyTyped,igorsechyn/DefinitelyTyped,ashwinr/DefinitelyTyped,sergey-buturlakin/DefinitelyTyped,nainslie/DefinitelyTyped,nainslie/DefinitelyTyped,elisee/DefinitelyTyped,NelsonLamprecht/DefinitelyTyped,Litee/DefinitelyTyped,takenet/DefinitelyTyped,nobuoka/DefinitelyTyped,kmeurer/DefinitelyTyped,GlennQuirynen/DefinitelyTyped,superduper/DefinitelyTyped,AgentME/DefinitelyTyped,markogresak/DefinitelyTyped,herrmanno/DefinitelyTyped,dpsthree/DefinitelyTyped,fishgoh0nk/DefinitelyTyped,abner/DefinitelyTyped,fredgalvao/DefinitelyTyped,GodsBreath/DefinitelyTyped,scsouthw/DefinitelyTyped,mareek/DefinitelyTyped,psnider/DefinitelyTyped,bdoss/DefinitelyTyped,martinduparc/DefinitelyTyped,vagarenko/DefinitelyTyped,hx0day/DefinitelyTyped,rolandzwaga/DefinitelyTyped,Bunkerbewohner/DefinitelyTyped,reppners/DefinitelyTyped,laball/DefinitelyTyped,tinganho/DefinitelyTyped,borisyankov/DefinitelyTyped,arma-gast/DefinitelyTyped,Dashlane/DefinitelyTyped,Ptival/DefinitelyTyped,goaty92/DefinitelyTyped,scriby/DefinitelyTyped,sandersky/DefinitelyTyped,jasonswearingen/DefinitelyTyped,rcchen/DefinitelyTyped,PopSugar/DefinitelyTyped,arcticwaters/DefinitelyTyped,ducin/DefinitelyTyped,benishouga/DefinitelyTyped,fearthecowboy/DefinitelyTyped,aldo-roman/DefinitelyTyped,glenndierckx/DefinitelyTyped,kanreisa/DefinitelyTyped,flyfishMT/DefinitelyTyped,giggio/DefinitelyTyped,arusakov/DefinitelyTyped,wilfrem/DefinitelyTyped,danfma/DefinitelyTyped,HPFOD/DefinitelyTyped,alvarorahul/DefinitelyTyped,chrilith/DefinitelyTyped,GregOnNet/DefinitelyTyped,bennett000/DefinitelyTyped,applesaucers/lodash-invokeMap,M-Zuber/DefinitelyTyped,pocesar/DefinitelyTyped,TrabacchinLuigi/DefinitelyTyped,CodeZombieCH/DefinitelyTyped,syuilo/DefinitelyTyped,nobuoka/DefinitelyTyped,progre/DefinitelyTyped,icereed/DefinitelyTyped,flyfishMT/DefinitelyTyped,gandjustas/DefinitelyTyped,zuohaocheng/DefinitelyTyped,glenndierckx/DefinitelyTyped,hatz48/DefinitelyTyped,muenchdo/DefinitelyTyped,hellopao/DefinitelyTyped,olemp/DefinitelyTyped,teves-castro/DefinitelyTyped,zuzusik/DefinitelyTyped,deeleman/DefinitelyTyped,pocesar/DefinitelyTyped,rolandzwaga/DefinitelyTyped,erosb/DefinitelyTyped,florentpoujol/DefinitelyTyped,jimthedev/DefinitelyTyped,jeremyhayes/DefinitelyTyped,trystanclarke/DefinitelyTyped,smrq/DefinitelyTyped,esperco/DefinitelyTyped,OpenMaths/DefinitelyTyped,Softpagehomeware/DefinitelyTyped,Zzzen/DefinitelyTyped,minodisk/DefinitelyTyped,Chris380/DefinitelyTyped,bridge-ufsc/DefinitelyTyped,raijinsetsu/DefinitelyTyped,schmuli/DefinitelyTyped,borisyankov/DefinitelyTyped,hellopao/DefinitelyTyped,mshmelev/DefinitelyTyped,stanislavHamara/DefinitelyTyped,newclear/DefinitelyTyped,nmalaguti/DefinitelyTyped,nycdotnet/DefinitelyTyped,basp/DefinitelyTyped,alainsahli/DefinitelyTyped,alexdresko/DefinitelyTyped,teddyward/DefinitelyTyped,robert-voica/DefinitelyTyped,chrootsu/DefinitelyTyped,alextkachman/DefinitelyTyped,kuon/DefinitelyTyped,Litee/DefinitelyTyped,jraymakers/DefinitelyTyped,philippstucki/DefinitelyTyped,mendix/DefinitelyTyped,sclausen/DefinitelyTyped,optical/DefinitelyTyped,gcastre/DefinitelyTyped,paulmorphy/DefinitelyTyped,dsebastien/DefinitelyTyped,Zzzen/DefinitelyTyped,takfjt/DefinitelyTyped,chbrown/Defi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itelyTyped,GiedriusGrabauskas/DefinitelyTyped,dydek/DefinitelyTyped,tomtarrot/DefinitelyTyped,ajtowf/DefinitelyTyped,brainded/DefinitelyTyped,yuit/DefinitelyTyped,paxibay/DefinitelyTyped,maxlang/DefinitelyTyped,dydek/DefinitelyTyped,drillbits/DefinitelyTyped,Gmulti/DefinitelyTyped,angelobelchior8/DefinitelyTyped,Minishlink/DefinitelyTyped,SebastianCoetzee/DefinitelyTyped,kalloc/DefinitelyTyped,CodeZombieCH/DefinitelyTyped,lekaha/DefinitelyTyped,DzmitryDulko/DefinitelyTyped,greglo/DefinitelyTyped,psnider/DefinitelyTyped,vincentw56/DefinitelyTyped,lbesson/DefinitelyTyped,bennett000/DefinitelyTyped,frogcjn/DefinitelyTyped,drinchev/DefinitelyTyped,aciccarello/DefinitelyTyped,timramone/DefinitelyTyped,dmoonfire/DefinitelyTyped,jesseschalken/DefinitelyTyped,trystanclarke/DefinitelyTyped,mcliment/DefinitelyTyped,DzmitryDulko/DefinitelyTyped,chrootsu/DefinitelyTyped,behzad888/DefinitelyTyped,YousefED/DefinitelyTyped,AgentME/DefinitelyTyped,benliddicott/DefinitelyTyped,GlennQuirynen/DefinitelyTyped,damianog/DefinitelyTyped,laurentiustamate94/DefinitelyTyped,sclausen/DefinitelyTyped,gregoryagu/DefinitelyTyped,Trapulo/DefinitelyTyped,dariajung/DefinitelyTyped,amanmahajan7/DefinitelyTyped,tdmckinn/DefinitelyTyped,fnipo/DefinitelyTyped,mhegazy/DefinitelyTyped,stacktracejs/DefinitelyTyped,donnut/DefinitelyTyped,davidpricedev/DefinitelyTyped,spearhead-ea/DefinitelyTyped,slavomirvojacek/DefinitelyTyped,gyohk/DefinitelyTyped,grahammendick/DefinitelyTyped,aqua89/DefinitelyTyped,shovon/DefinitelyTyped,TheBay0r/DefinitelyTyped,rushi216/DefinitelyTyped,benishouga/DefinitelyTyped,georgemarshall/DefinitelyTyped,daptiv/DefinitelyTyped,uestcNaldo/DefinitelyTyped,Saneyan/DefinitelyTyped,teves-castro/DefinitelyTyped,QuatroCode/DefinitelyTyped,xStrom/DefinitelyTyped,smrq/DefinitelyTyped,zalamtech/DefinitelyTyped,aciccarello/DefinitelyTyped,syntax42/DefinitelyTyped,gyohk/DefinitelyTyped,MarlonFan/DefinitelyTyped,xswordsx/DefinitelyTyped,hellopao/DefinitelyTyped,lseguin42/DefinitelyTyped,stephenjelfs/DefinitelyTyped,cvrajeesh/DefinitelyTyped,egeland/DefinitelyTyped,nitintutlani/DefinitelyTyped,dflor003/DefinitelyTyped,OfficeDev/DefinitelyTyped,DeluxZ/DefinitelyTyped,raijinsetsu/DefinitelyTyped,subash-a/DefinitelyTyped,leoromanovsky/DefinitelyTyped,esperco/DefinitelyTyped,drinchev/DefinitelyTyped,magny/DefinitelyTyped,dmoonfire/DefinitelyTyped,magny/DefinitelyTyped,nitintutlani/DefinitelyTyped,Mek7/DefinitelyTyped,AyaMorisawa/DefinitelyTyped,schmuli/DefinitelyTyped,shahata/DefinitelyTyped,psnider/DefinitelyTyped,tscho/DefinitelyTyped,arusakov/DefinitelyTyped,maglar0/DefinitelyTyped,wilfrem/DefinitelyTyped,dragouf/DefinitelyTyped,mjjames/DefinitelyTyped,tan9/DefinitelyTyped,Garciat/DefinitelyTyped,blink1073/DefinitelyTyped,mattanja/DefinitelyTyped,isman-usoh/DefinitelyTyped,alexdresko/DefinitelyTyped,stacktracejs/DefinitelyTyped,stylelab-io/DefinitelyTyped,YousefED/DefinitelyTyped,igorraush/DefinitelyTyped,Softpagehomeware/DefinitelyTyped,tjoskar/DefinitelyTyped,slavomirvojacek/adbrain-typescript-definitions,BrandonCKrueger/DefinitelyTyped