Minor refactorings in Disposable for more immutability
Minor refactorings in Disposable for more immutability

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Cocoa,xiaobing2007/ReactiveCocoa,victorlin/ReactiveCocoa,SanChain/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,KuPai32G/ReactiveCocoa,hilllinux/ReactiveCocoa,jam891/ReactiveCocoa,yoichitgy/ReactiveCocoa,isghe/ReactiveCocoa,AlanJN/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,stupidfive/ReactiveCocoa,zhigang1992/ReactiveCocoa,loupman/ReactiveCocoa,bscarano/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,zhukaixy/ReactiveCocoa,Khan/ReactiveCocoa,taylormoonxu/ReactiveCocoa,clg0118/ReactiveCocoa,nikita-leonov/ReactiveCocoa,dullgrass/ReactiveCocoa,zhiwen1024/ReactiveCocoa,loupman/ReactiveCocoa,kaylio/ReactiveCocoa,SanChain/ReactiveCocoa,mattpetters/ReactiveCocoa,hj3938/ReactiveCocoa,brasbug/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,tzongw/ReactiveCocoa,dachaoisme/ReactiveCocoa,nikita-leonov/ReactiveCocoa,lixar/ReactiveCocoa,FelixYin66/ReactiveCocoa,stevielu/ReactiveCocoa,vincentiss/ReactiveCocoa,ohwutup/ReactiveCocoa,richeterre/ReactiveCocoa,chieryw/ReactiveCocoa,kiurentu/ReactiveCocoa,dskatz22/ReactiveCocoa,fanghao085/ReactiveCocoa,towik/ReactiveCocoa,jackywpy/ReactiveCocoa,mxxiv/ReactiveCocoa,ericzhou2008/ReactiveCocoa,gengjf/ReactiveCocoa,hoanganh6491/ReactiveCocoa,emodeqidao/ReactiveCocoa,Ethan89/ReactiveCocoa,mattpetters/ReactiveCocoa,jeelun/ReactiveCocoa,esttorhe/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,wpstarnice/ReactiveCocoa,xiaoliyang/ReactiveCocoa,add715/ReactiveCocoa,monkeydbobo/ReactiveCocoa,ceekayel/ReactiveCocoa,FelixYin66/ReactiveCocoa,tornade0913/ReactiveCocoa,ikesyo/ReactiveCocoa,kevin-zqw/ReactiveCocoa,leichunfeng/ReactiveCocoa,on99/ReactiveCocoa,towik/ReactiveCocoa,chieryw/ReactiveCocoa,beni55/ReactiveCocoa,dullgrass/ReactiveCocoa,nickcheng/ReactiveCocoa,leichunfeng/ReactiveCocoa,AlanJN/ReactiveCocoa,Rupert-RR/ReactiveCocoa,tornade0913/ReactiveCocoa,natestedman/ReactiveCocoa,mxxiv/ReactiveCocoa,xumaolin/ReactiveCocoa,richeterre/ReactiveCocoa,zzqiltw/ReactiveCocoa,KuPai32G/ReactiveCocoa,nikita-leonov/ReactiveCocoa,nickcheng/ReactiveCocoa,cogddo/ReactiveCocoa,jaylib/ReactiveCocoa,FelixYin66/ReactiveCocoa,brasbug/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,imkerberos/ReactiveCocoa,BlessNeo/ReactiveCocoa,libiao88/ReactiveCocoa,hj3938/ReactiveCocoa,j364960953/ReactiveCocoa,stupidfive/ReactiveCocoa,icepy/ReactiveCocoa,walkingsmarts/ReactiveCocoa,Ricowere/ReactiveCocoa,rpowelll/ReactiveCocoa,takeshineshiro/ReactiveCocoa,longv2go/ReactiveCocoa,mtxs007/ReactiveCocoa,LHDsimon/ReactiveCocoa,wangqi211/ReactiveCocoa,ddc391565320/ReactiveCocoa,stevielu/ReactiveCocoa,LHDsimon/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,ioshger0125/ReactiveCocoa,mattpetters/ReactiveCocoa,WEIBP/ReactiveCocoa,jsslai/ReactiveCocoa,valleyman86/ReactiveCocoa,sujeking/ReactiveCocoa,yizzuide/ReactiveCocoa,libiao88/ReactiveCocoa,JohnJin007/ReactiveCocoa,ztchena/ReactiveCocoa,goodheart/ReactiveCocoa,bscarano/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,zhiwen1024/ReactiveCocoa,eyu1988/ReactiveCocoa,esttorhe/ReactiveCocoa,Eveian/ReactiveCocoa,nickcheng/ReactiveCocoa,qq644531343/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,takeshineshiro/ReactiveCocoa,Juraldinio/ReactiveCocoa,liufeigit/ReactiveCocoa,kevin-zqw/ReactiveCocoa,howandhao/ReactiveCocoa,lixar/ReactiveCocoa,sandyway/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,yonekawa/ReactiveCocoa,natan/ReactiveCocoa,libiao88/ReactiveCocoa,howandhao/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,zxq3220122/ReactiveCocoa,add715/ReactiveCocoa,lixar/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,hj3938/ReactiveCocoa,DreamHill/ReactiveCocoa,brasbug/ReactiveCocoa,Khan/ReactiveCocoa,Ray0218/ReactiveCocoa,kaylio/ReactiveCocoa,wangqi211/ReactiveCocoa,dskatz22/ReactiveCocoa,xiaobing2007/ReactiveCocoa,jaylib/ReactiveCocoa,windgo/ReactiveCocoa,paulyoung/ReactiveCocoa,calebd/ReactiveCocoa,isghe/ReactiveCocoa,cogddo/ReactiveCocoa,zzqiltw/ReactiveCocoa,taylormoonxu/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,Khan/ReactiveCocoa,tiger8888/ReactiveCocoa,jeelun/ReactiveCocoa,beni55/ReactiveCocoa,itschaitanya/ReactiveCocoa,smilypeda/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,fhchina/ReactiveCocoa,yoichitgy/ReactiveCocoa,zzzworm/ReactiveCocoa,bensonday/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,tonyarnold/ReactiveCocoa,JackLian/ReactiveCocoa,dullgrass/ReactiveCocoa,200895045/ReactiveCocoa,takeshineshiro/ReactiveCocoa,sdhzwm/ReactiveCocoa,huiping192/ReactiveCocoa,dz1111/ReactiveCocoa,cstars135/ReactiveCocoa,jrmiddle/ReactiveCocoa,ohwutup/ReactiveCocoa,tzongw/ReactiveCocoa,CQXfly/ReactiveCocoa,windgo/ReactiveCocoa,zzqiltw/ReactiveCocoa,zhenlove/ReactiveCocoa,hbucius/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,ohwutup/ReactiveCocoa,cstars135/ReactiveCocoa,ddc391565320/ReactiveCocoa,ShawnLeee/ReactiveCocoa,CQXfly/ReactiveCocoa,jsslai/ReactiveCocoa,natestedman/ReactiveCocoa,natan/ReactiveCocoa,cstars135/ReactiveCocoa,ztchena/ReactiveCocoa,JohnJin007/ReactiveCocoa,valleyman86/ReactiveCocoa,emodeqidao/ReactiveCocoa,cogddo/ReactiveCocoa,shaohung001/ReactiveCocoa,bensonday/ReactiveCocoa,hilllinux/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,LHDsimon/ReactiveCocoa,luerhouhou/ReactiveCocoa,wpstarnice/ReactiveCocoa,sandyway/ReactiveCocoa,Liquidsoul/ReactiveCocoa,ioshger0125/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,smilypeda/ReactiveCocoa,calebd/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,goodheart/ReactiveCocoa,jrmiddle/ReactiveCocoa,almassapargali/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,monkeydbobo/ReactiveCocoa,BrooksWon/ReactiveCocoa,jackywpy/ReactiveCocoa,jam891/ReactiveCocoa,yytong/ReactiveCocoa,DreamHill/ReactiveCocoa,llb1119/test,ReactiveCocoa/ReactiveSwift,WEIBP/ReactiveCocoa,JackLian/ReactiveCocoa,Ethan89/ReactiveCocoa,zhukaixy/ReactiveCocoa,JackLian/ReactiveCocoa,longv2go/ReactiveCocoa,200895045/ReactiveCocoa,emodeqidao/ReactiveCocoa,zhaoguohui/ReactiveCocoa,Liquidsoul/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,almassapargali/ReactiveCocoa,jackywpy/ReactiveCocoa,tiger8888/ReactiveCocoa,tonyarnold/ReactiveCocoa,nickcheng/ReactiveCocoa,Rupert-RR/ReactiveCocoa,sdhzwm/ReactiveCocoa,xiaobing2007/ReactiveCocoa,Juraldinio/ReactiveCocoa,dskatz22/ReactiveCocoa,walkingsmarts/ReactiveCocoa,sujeking/ReactiveCocoa,Ricowere/ReactiveCocoa,leelili/ReactiveCocoa,jrmiddle/ReactiveCocoa,alvinvarghese/ReactiveCocoa,towik/ReactiveCocoa