Make some operators private
Make some operators private

sujeking/ReactiveCocoa,xiaoliyang/ReactiveCocoa,ericzhou2008/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,natestedman/ReactiveCocoa,BrooksWon/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,cnbin/ReactiveCocoa,andersio/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,fhchina/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,chieryw/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,KJin99/ReactiveCocoa,isghe/ReactiveCocoa,ztchena/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,leelili/ReactiveCocoa,200895045/ReactiveCocoa,Ray0218/ReactiveCocoa,jeelun/ReactiveCocoa,tornade0913/ReactiveCocoa,ceekayel/ReactiveCocoa,jaylib/ReactiveCocoa,zhaoguohui/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,dz1111/ReactiveCocoa,nikita-leonov/ReactiveCocoa,towik/ReactiveCocoa,smilypeda/ReactiveCocoa,goodheart/ReactiveCocoa,zxq3220122/ReactiveCocoa,sugar2010/ReactiveCocoa,ericzhou2008/ReactiveCocoa,SuPair/ReactiveCocoa,monkeydbobo/ReactiveCocoa,pzw224/ReactiveCocoa,LHDsimon/ReactiveCocoa,sandyway/ReactiveCocoa,kaylio/ReactiveCocoa,j364960953/ReactiveCocoa,sugar2010/ReactiveCocoa,yizzuide/ReactiveCocoa,Ray0218/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,longv2go/ReactiveCocoa,KuPai32G/ReactiveCocoa,howandhao/ReactiveCocoa,natan/ReactiveCocoa,howandhao/ReactiveCocoa,DreamHill/ReactiveCocoa,dskatz22/ReactiveCocoa,xumaolin/ReactiveCocoa,fanghao085/ReactiveCocoa,vincentiss/ReactiveCocoa,gengjf/ReactiveCocoa,JackLian/ReactiveCocoa,yoichitgy/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,windgo/ReactiveCocoa,nickcheng/ReactiveCocoa,natestedman/ReactiveCocoa,clg0118/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,zhigang1992/ReactiveCocoa,eyu1988/ReactiveCocoa,almassapargali/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,kaylio/ReactiveCocoa,alvinvarghese/ReactiveCocoa,OneSmallTree/ReactiveCocoa,mxxiv/ReactiveCocoa,tzongw/ReactiveCocoa,Juraldinio/ReactiveCocoa,beni55/ReactiveCocoa,natan/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,chao95957/ReactiveCocoa,yizzuide/ReactiveCocoa,natan/ReactiveCocoa,zzqiltw/ReactiveCocoa,alvinvarghese/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,zxq3220122/ReactiveCocoa,ioshger0125/ReactiveCocoa,ohwutup/ReactiveCocoa,kevin-zqw/ReactiveCocoa,icepy/ReactiveCocoa,JackLian/ReactiveCocoa,shaohung001/ReactiveCocoa,OneSmallTree/ReactiveCocoa,ShawnLeee/ReactiveCocoa,dskatz22/ReactiveCocoa,llb1119/test,Liquidsoul/ReactiveCocoa,jaylib/ReactiveCocoa,zhaoguohui/ReactiveCocoa,ioshger0125/ReactiveCocoa,fhchina/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,BlessNeo/ReactiveCocoa,Pingco/ReactiveCocoa,SanChain/ReactiveCocoa,yonekawa/ReactiveCocoa,sandyway/ReactiveCocoa,zhiwen1024/ReactiveCocoa,tiger8888/ReactiveCocoa,Liquidsoul/ReactiveCocoa,esttorhe/ReactiveCocoa,monkeydbobo/ReactiveCocoa,sdhzwm/ReactiveCocoa,j364960953/ReactiveCocoa,Eveian/ReactiveCocoa,wangqi211/ReactiveCocoa,dskatz22/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,Ethan89/ReactiveCocoa,vincentiss/ReactiveCocoa,zhiwen1024/ReactiveCocoa,Ricowere/ReactiveCocoa,cstars135/ReactiveCocoa,paulyoung/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,xulibao/ReactiveCocoa,howandhao/ReactiveCocoa,zzzworm/ReactiveCocoa,kevin-zqw/ReactiveCocoa,Ray0218/ReactiveCocoa,jsslai/ReactiveCocoa,clg0118/ReactiveCocoa,nikita-leonov/ReactiveCocoa,ddc391565320/ReactiveCocoa,liufeigit/ReactiveCocoa,JohnJin007/ReactiveCocoa,esttorhe/ReactiveCocoa,SuPair/ReactiveCocoa,hbucius/ReactiveCocoa,CQXfly/ReactiveCocoa,Juraldinio/ReactiveCocoa,loupman/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,zhenlove/ReactiveCocoa,ShawnLeee/ReactiveCocoa,stevielu/ReactiveCocoa,longv2go/ReactiveCocoa,libiao88/ReactiveCocoa,pzw224/ReactiveCocoa,brasbug/ReactiveCocoa,cstars135/ReactiveCocoa,bscarano/ReactiveCocoa,tiger8888/ReactiveCocoa,ohwutup/ReactiveCocoa,almassapargali/ReactiveCocoa,tonyli508/ReactiveCocoa,jrmiddle/ReactiveCocoa,imkerberos/ReactiveCocoa,rpowelll/ReactiveCocoa,xiaobing2007/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,sdhzwm/ReactiveCocoa,zzqiltw/ReactiveCocoa,mxxiv/ReactiveCocoa,dz1111/ReactiveCocoa,cnbin/ReactiveCocoa,mattpetters/ReactiveCocoa,BlessNeo/ReactiveCocoa,BrooksWon/ReactiveCocoa,yizzuide/ReactiveCocoa,zzzworm/ReactiveCocoa,icepy/ReactiveCocoa,itschaitanya/ReactiveCocoa,mattpetters/ReactiveCocoa,nickcheng/ReactiveCocoa,luerhouhou/ReactiveCocoa,jaylib/ReactiveCocoa,taylormoonxu/ReactiveCocoa,esttorhe/ReactiveCocoa,hj3938/ReactiveCocoa,wangqi211/ReactiveCocoa,cogddo/ReactiveCocoa,tornade0913/ReactiveCocoa,Ricowere/ReactiveCocoa,tzongw/ReactiveCocoa,towik/ReactiveCocoa,hoanganh6491/ReactiveCocoa,sugar2010/ReactiveCocoa,Rupert-RR/ReactiveCocoa,jackywpy/ReactiveCocoa,windgo/ReactiveCocoa,mtxs007/ReactiveCocoa,ztchena/ReactiveCocoa,jam891/ReactiveCocoa,brasbug/ReactiveCocoa,loupman/ReactiveCocoa,Ricowere/ReactiveCocoa,Rupert-RR/ReactiveCocoa,libiao88/ReactiveCocoa,jsslai/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,tonyarnold/ReactiveCocoa,itschaitanya/ReactiveCocoa,beni55/ReactiveCocoa,llb1119/test,ddc391565320/ReactiveCocoa,ceekayel/ReactiveCocoa,ioshger0125/ReactiveCocoa,wangqi211/ReactiveCocoa,loupman/ReactiveCocoa,leelili/ReactiveCocoa,lixar/ReactiveCocoa,add715/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,kaylio/ReactiveCocoa,dullgrass/ReactiveCocoa,Eveian/ReactiveCocoa,richeterre/ReactiveCocoa,200895045/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,valleyman86/ReactiveCocoa,leichunfeng/ReactiveCocoa,LHDsimon/ReactiveCocoa,zhigang1992/ReactiveCocoa,takeshineshiro/ReactiveCocoa,hoanganh6491/ReactiveCocoa,ikesyo/ReactiveCocoa,smilypeda/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,Liquidsoul/ReactiveCocoa,lixar/ReactiveCocoa,liufeigit/ReactiveCocoa,calebd/ReactiveCocoa,zxq3220122/ReactiveCocoa,DreamHill/ReactiveCocoa,fanghao085/ReactiveCocoa,JohnJin007/ReactiveCocoa,zhukaixy/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,emodeqidao/ReactiveCocoa,dullgrass/ReactiveCocoa,sdhzwm/ReactiveCocoa,KuPai32G/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,cogddo/ReactiveCocoa,yytong/ReactiveCocoa,OneSmallTree/ReactiveCocoa,isghe/ReactiveCocoa,Khan/ReactiveCocoa,Pingco/ReactiveCocoa,walkingsmarts/ReactiveCocoa,xiaoliyang/ReactiveCocoa,zhaoguohui/ReactiveCocoa,on99/ReactiveCocoa,smilypeda/ReactiveCocoa,BrooksWon/ReactiveCocoa,SanChain/ReactiveCocoa,mattpetters/ReactiveCocoa,andersio/ReactiveCocoa,eyu1988/ReactiveCocoa,zhukaixy/ReactiveCocoa,wpstarnice/ReactiveCocoa,luerhouhou/ReactiveCocoa,Farteen/ReactiveCocoa,ikesyo/ReactiveCocoa,xiaoliyang/ReactiveCocoa,Ricowere/ReactiveCocoa,victorlin/ReactiveCocoa,dullgrass/ReactiveCocoa,AlanJN/ReactiveCocoa,emodeqidao/ReactiveCocoa,CQXfly/ReactiveCocoa,jaylib/ReactiveCocoa,goodheart/ReactiveCocoa,sandyway/ReactiveCocoa,WEIBP/ReactiveCocoa,mtxs007/ReactiveCocoa,monkeydbobo/ReactiveCocoa,pzw224/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,calebd/ReactiveCocoa,llb1119/test,juliangrosshauser/ReactiveCocoa,bensonday/ReactiveCocoa,WEIBP/ReactiveCocoa,luerhouhou/ReactiveCocoa,Khan/ReactiveCocoa,WEIBP/ReactiveCocoa,stupidfive/ReactiveCocoa,icepy/ReactiveCocoa,chieryw/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,victorlin/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,tiger8888/ReactiveCocoa,takeshineshiro/ReactiveCocoa,on99/ReactiveCocoa,paulyoung/ReactiveCocoa,tonyli508/ReactiveCocoa,cstars135/ReactiveCocoa,imkerberos/ReactiveCocoa,yonekawa/ReactiveCocoa,tonyarnold/ReactiveCocoa,buildo/ReactiveCocoa,libiao88/ReactiveCocoa,eyu1988/ReactiveCocoa,yoichitgy/ReactiveCocoa,emodeqidao/ReactiveCocoa,kiurentu/ReactiveCocoa,leichunfeng/ReactiveCocoa,yoichitgy/ReactiveCocoa,fhchina/ReactiveCocoa,huiping192/ReactiveCocoa,hj3938/ReactiveCocoa,almassapargali/ReactiveCocoa,jackywpy/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,windgo/ReactiveCocoa,yonekawa/ReactiveCocoa,lixar/ReactiveCocoa,SuPair/ReactiveCocoa,huiping192/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,tonyarnold/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,goodheart/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,brasbug/ReactiveCocoa,yytong/ReactiveCocoa,gengjf/ReactiveCocoa,zzzworm/ReactiveCocoa,zzqiltw/ReactiveCocoa,richeterre/ReactiveCocoa,valleyman86/ReactiveCocoa,leichunfeng/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,j364960953/ReactiveCocoa,FelixYin66/ReactiveCocoa,BlessNeo/ReactiveCocoa,andersio/ReactiveCocoa,takeshineshiro/ReactiveCocoa,stupidfive/ReactiveCocoa,stevielu/ReactiveCocoa,richeterre/ReactiveCocoa,ceekayel/ReactiveCocoa,shaohung001/ReactiveCocoa,qq644531343/ReactiveCocoa,yytong/ReactiveCocoa,xulibao/ReactiveCocoa,towik/ReactiveCocoa,on99/ReactiveCocoa,Farteen/ReactiveCocoa,hbucius/ReactiveCocoa,CQXfly/ReactiveCocoa,add715/ReactiveCocoa,FelixYin66/ReactiveCocoa,natestedman/ReactiveCocoa,chao95957/ReactiveCocoa,alvinvarghese/ReactiveCocoa,xiaobing2007/ReactiveCocoa,xumaolin/ReactiveCocoa,JackLian/ReactiveCocoa,leelili/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,Farteen/ReactiveCocoa,tonyli508/ReactiveCocoa,victorlin/ReactiveCocoa,esttorhe/ReactiveCocoa,nikita-leonov/ReactiveCocoa,xiaobing2007/ReactiveCocoa,bensonday/ReactiveCocoa,hoanganh6491/ReactiveCocoa,qq644531343/ReactiveCocoa,fanghao085/ReactiveCocoa,itschaitanya/ReactiveCocoa,tzongw/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,mxxiv/ReactiveCocoa,Rupert-RR/ReactiveCocoa,KJin99/ReactiveCocoa,bscarano/ReactiveCocoa,KuPai32G/ReactiveCocoa,wpstarnice/ReactiveCocoa,DreamHill/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,hilllinux/ReactiveCocoa,Ethan89/ReactiveCocoa,zhiwen1024/ReactiveCocoa,valleyman86/ReactiveCocoa,jackywpy/ReactiveCocoa,kevin-zqw/ReactiveCocoa,stupidfive/ReactiveCocoa,buildo/ReactiveCocoa,dz1111/ReactiveCocoa,Khan/ReactiveCocoa,bscarano/ReactiveCocoa,JohnJin007/ReactiveCocoa,jsslai/ReactiveCocoa,tornade0913/ReactiveCocoa,wpstarnice/ReactiveCocoa,shaohung001/ReactiveCocoa,buildo/ReactiveCocoa,jrmiddle/ReactiveCocoa,huiping192/ReactiveCocoa,dachaoisme/ReactiveCocoa,hilllinux/ReactiveCocoa,add715/ReactiveCocoa,taylormoonxu/ReactiveCocoa,ShawnLeee/ReactiveCocoa,ohwutup/ReactiveCocoa,rpowelll/ReactiveCocoa,200895045/ReactiveCocoa,kiurentu/ReactiveCocoa,jam891/ReactiveCocoa,clg0118/ReactiveCocoa,kiurentu/ReactiveCocoa,hj3938/ReactiveCocoa,zhukaixy/ReactiveCocoa,chao95957/ReactiveCocoa,beni55/ReactiveCocoa,Pingco/ReactiveCocoa,paulyoung/ReactiveCocoa,gengjf/ReactiveCocoa,AlanJN/ReactiveCocoa,longv2go/ReactiveCocoa,dachaoisme/ReactiveCocoa,dachaoisme/ReactiveCocoa,FelixYin66/ReactiveCocoa,KJin99/ReactiveCocoa,jam891/ReactiveCocoa,taylormoonxu/ReactiveCocoa,xumaolin/ReactiveCocoa,Juraldinio/ReactiveCocoa,nickcheng/ReactiveCocoa,hilllinux/ReactiveCocoa,sujeking/ReactiveCocoa,Eveian/ReactiveCocoa,mtxs007/ReactiveCocoa,zhenlove/ReactiveCocoa,huiping192/ReactiveCocoa,imkerberos/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,walkingsmarts/ReactiveCocoa,stevielu/ReactiveCocoa,cogddo/ReactiveCocoa,cnbin/ReactiveCocoa,jrmiddle/ReactiveCocoa,walkingsmarts/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,liufeigit/ReactiveCocoa,jeelun/ReactiveCocoa,xulibao/ReactiveCocoa,Ethan89/ReactiveCocoa,sujeking/ReactiveCocoa,chieryw/ReactiveCocoa,ztchena/ReactiveCocoa,zhenlove/ReactiveCocoa,jeelun/ReactiveCocoa,bensonday/ReactiveCocoa,ericzhou2008/ReactiveCocoa,isghe/ReactiveCocoa,AlanJN/ReactiveCocoa,vincentiss/ReactiveCocoa,LHDsimon/ReactiveCocoa,rpowelll/ReactiveCocoa,SanChain/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,nickcheng/ReactiveCocoa,hbucius/ReactiveCocoa,zhigang1992/ReactiveCocoa,calebd/ReactiveCocoa,qq644531343/ReactiveCocoa,ddc391565320/ReactiveCocoa