Add mergeMap and switchMap to HotSignal
Add mergeMap and switchMap to HotSignal

BrooksWon/ReactiveCocoa,mattpetters/ReactiveCocoa,add715/ReactiveCocoa,buildo/ReactiveCocoa,dskatz22/ReactiveCocoa,dullgrass/ReactiveCocoa,Juraldinio/ReactiveCocoa,liufeigit/ReactiveCocoa,jam891/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,buildo/ReactiveCocoa,valleyman86/ReactiveCocoa,natestedman/ReactiveCocoa,CQXfly/ReactiveCocoa,dz1111/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,ikesyo/ReactiveCocoa,loupman/ReactiveCocoa,tonyli508/ReactiveCocoa,WEIBP/ReactiveCocoa,tonyli508/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,Liquidsoul/ReactiveCocoa,stupidfive/ReactiveCocoa,dullgrass/ReactiveCocoa,Ray0218/ReactiveCocoa,stupidfive/ReactiveCocoa,on99/ReactiveCocoa,jaylib/ReactiveCocoa,nickcheng/ReactiveCocoa,kevin-zqw/ReactiveCocoa,JohnJin007/ReactiveCocoa,shaohung001/ReactiveCocoa,natestedman/ReactiveCocoa,lixar/ReactiveCocoa,valleyman86/ReactiveCocoa,zzzworm/ReactiveCocoa,clg0118/ReactiveCocoa,natan/ReactiveCocoa,nickcheng/ReactiveCocoa,Ricowere/ReactiveCocoa,paulyoung/ReactiveCocoa,200895045/ReactiveCocoa,brasbug/ReactiveCocoa,fhchina/ReactiveCocoa,FelixYin66/ReactiveCocoa,andersio/ReactiveCocoa,zzqiltw/ReactiveCocoa,esttorhe/ReactiveCocoa,cogddo/ReactiveCocoa,valleyman86/ReactiveCocoa,tzongw/ReactiveCocoa,hilllinux/ReactiveCocoa,dachaoisme/ReactiveCocoa,llb1119/test,SuPair/ReactiveCocoa,imkerberos/ReactiveCocoa,walkingsmarts/ReactiveCocoa,richeterre/ReactiveCocoa,fanghao085/ReactiveCocoa,zxq3220122/ReactiveCocoa,tiger8888/ReactiveCocoa,calebd/ReactiveCocoa,bensonday/ReactiveCocoa,dullgrass/ReactiveCocoa,windgo/ReactiveCocoa,on99/ReactiveCocoa,stupidfive/ReactiveCocoa,ShawnLeee/ReactiveCocoa,nikita-leonov/ReactiveCocoa,ddc391565320/ReactiveCocoa,zhukaixy/ReactiveCocoa,alvinvarghese/ReactiveCocoa,Eveian/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,Ethan89/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,j364960953/ReactiveCocoa,ioshger0125/ReactiveCocoa,isghe/ReactiveCocoa,victorlin/ReactiveCocoa,jrmiddle/ReactiveCocoa,dskatz22/ReactiveCocoa,terry408911/ReactiveCocoa,tiger8888/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,hoanganh6491/ReactiveCocoa,huiping192/ReactiveCocoa,CQXfly/ReactiveCocoa,howandhao/ReactiveCocoa,andersio/ReactiveCocoa,nickcheng/ReactiveCocoa,wpstarnice/ReactiveCocoa,BlessNeo/ReactiveCocoa,tonyarnold/ReactiveCocoa,AlanJN/ReactiveCocoa,Ricowere/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,kaylio/ReactiveCocoa,zhukaixy/ReactiveCocoa,FelixYin66/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,xiaoliyang/ReactiveCocoa,mtxs007/ReactiveCocoa,luerhouhou/ReactiveCocoa,smilypeda/ReactiveCocoa,tiger8888/ReactiveCocoa,JackLian/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,almassapargali/ReactiveCocoa,jrmiddle/ReactiveCocoa,qq644531343/ReactiveCocoa,sandyway/ReactiveCocoa,yytong/ReactiveCocoa,mattpetters/ReactiveCocoa,zzzworm/ReactiveCocoa,xulibao/ReactiveCocoa,mtxs007/ReactiveCocoa,calebd/ReactiveCocoa,sandyway/ReactiveCocoa,rpowelll/ReactiveCocoa,zhaoguohui/ReactiveCocoa,walkingsmarts/ReactiveCocoa,pzw224/ReactiveCocoa,vincentiss/ReactiveCocoa,cstars135/ReactiveCocoa,terry408911/ReactiveCocoa,cogddo/ReactiveCocoa,wangqi211/ReactiveCocoa,tzongw/ReactiveCocoa,jackywpy/ReactiveCocoa,icepy/ReactiveCocoa,yonekawa/ReactiveCocoa,JohnJin007/ReactiveCocoa,jeelun/ReactiveCocoa,LHDsimon/ReactiveCocoa,smilypeda/ReactiveCocoa,ddc391565320/ReactiveCocoa,sugar2010/ReactiveCocoa,dachaoisme/ReactiveCocoa,OneSmallTree/ReactiveCocoa,hilllinux/ReactiveCocoa,paulyoung/ReactiveCocoa,zxq3220122/ReactiveCocoa,windgo/ReactiveCocoa,hj3938/ReactiveCocoa,yonekawa/ReactiveCocoa,Ray0218/ReactiveCocoa,hj3938/ReactiveCocoa,nickcheng/ReactiveCocoa,zhaoguohui/ReactiveCocoa,jsslai/ReactiveCocoa,Rupert-RR/ReactiveCocoa,xumaolin/ReactiveCocoa,KJin99/ReactiveCocoa,eyu1988/ReactiveCocoa,taylormoonxu/ReactiveCocoa,Ricowere/ReactiveCocoa,dachaoisme/ReactiveCocoa,esttorhe/ReactiveCocoa,cnbin/ReactiveCocoa,loupman/ReactiveCocoa,ztchena/ReactiveCocoa,eyu1988/ReactiveCocoa,KJin99/ReactiveCocoa,hbucius/ReactiveCocoa,KuPai32G/ReactiveCocoa,Eveian/ReactiveCocoa,zxq3220122/ReactiveCocoa,bscarano/ReactiveCocoa,brasbug/ReactiveCocoa,hbucius/ReactiveCocoa,AlanJN/ReactiveCocoa,JackLian/ReactiveCocoa,ztchena/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,zhenlove/ReactiveCocoa,chao95957/ReactiveCocoa,fanghao085/ReactiveCocoa,KJin99/ReactiveCocoa,smilypeda/ReactiveCocoa,BrooksWon/ReactiveCocoa,kaylio/ReactiveCocoa,ceekayel/ReactiveCocoa,libiao88/ReactiveCocoa,yoichitgy/ReactiveCocoa,natan/ReactiveCocoa,paulyoung/ReactiveCocoa,chao95957/ReactiveCocoa,zhenlove/ReactiveCocoa,andersio/ReactiveCocoa,Liquidsoul/ReactiveCocoa,zzqiltw/ReactiveCocoa,xiaobing2007/ReactiveCocoa,Liquidsoul/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,Rupert-RR/ReactiveCocoa,kevin-zqw/ReactiveCocoa,luerhouhou/ReactiveCocoa,richeterre/ReactiveCocoa,tornade0913/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,sugar2010/ReactiveCocoa,nikita-leonov/ReactiveCocoa,dz1111/ReactiveCocoa,wpstarnice/ReactiveCocoa,jeelun/ReactiveCocoa,OneSmallTree/ReactiveCocoa,chao95957/ReactiveCocoa,takeshineshiro/ReactiveCocoa,ericzhou2008/ReactiveCocoa,BlessNeo/ReactiveCocoa,yoichitgy/ReactiveCocoa,hbucius/ReactiveCocoa,leichunfeng/ReactiveCocoa,KuPai32G/ReactiveCocoa,ztchena/ReactiveCocoa,windgo/ReactiveCocoa,almassapargali/ReactiveCocoa,Pingco/ReactiveCocoa,pzw224/ReactiveCocoa,SuPair/ReactiveCocoa,itschaitanya/ReactiveCocoa,beni55/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,hilllinux/ReactiveCocoa,Ricowere/ReactiveCocoa,howandhao/ReactiveCocoa,Juraldinio/ReactiveCocoa,qq644531343/ReactiveCocoa,yytong/ReactiveCocoa,jrmiddle/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,WEIBP/ReactiveCocoa,loupman/ReactiveCocoa,takeshineshiro/ReactiveCocoa,zzqiltw/ReactiveCocoa,shaohung001/ReactiveCocoa,llb1119/test,isghe/ReactiveCocoa,takeshineshiro/ReactiveCocoa,200895045/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,monkeydbobo/ReactiveCocoa,sdhzwm/ReactiveCocoa,tonyli508/ReactiveCocoa,Khan/ReactiveCocoa,pzw224/ReactiveCocoa,SuPair/ReactiveCocoa,zhaoguohui/ReactiveCocoa,sdhzwm/ReactiveCocoa,xumaolin/ReactiveCocoa,rpowelll/ReactiveCocoa,DreamHill/ReactiveCocoa,cnbin/ReactiveCocoa,beni55/ReactiveCocoa,jam891/ReactiveCocoa,xumaolin/ReactiveCocoa,stevielu/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,sujeking/ReactiveCocoa,on99/ReactiveCocoa,yytong/ReactiveCocoa,BlessNeo/ReactiveCocoa,itschaitanya/ReactiveCocoa,libiao88/ReactiveCocoa,icepy/ReactiveCocoa,goodheart/ReactiveCocoa,ikesyo/ReactiveCocoa,ohwutup/ReactiveCocoa,natestedman/ReactiveCocoa,kaylio/ReactiveCocoa,Farteen/ReactiveCocoa,chieryw/ReactiveCocoa,mxxiv/ReactiveCocoa,JackLian/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,longv2go/ReactiveCocoa,libiao88/ReactiveCocoa,yizzuide/ReactiveCocoa,cogddo/ReactiveCocoa,alvinvarghese/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,jsslai/ReactiveCocoa,huiping192/ReactiveCocoa,SanChain/ReactiveCocoa,jsslai/ReactiveCocoa,luerhouhou/ReactiveCocoa,leichunfeng/ReactiveCocoa,leelili/ReactiveCocoa,jackywpy/ReactiveCocoa,LHDsimon/ReactiveCocoa,ShawnLeee/ReactiveCocoa,Ethan89/ReactiveCocoa,hoanganh6491/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,leelili/ReactiveCocoa,LHDsimon/ReactiveCocoa,leichunfeng/ReactiveCocoa,mtxs007/ReactiveCocoa,Khan/ReactiveCocoa,yonekawa/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,chieryw/ReactiveCocoa,natan/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,ohwutup/ReactiveCocoa,sujeking/ReactiveCocoa,liufeigit/ReactiveCocoa,lixar/ReactiveCocoa,zhigang1992/ReactiveCocoa,cnbin/ReactiveCocoa,dskatz22/ReactiveCocoa,jam891/ReactiveCocoa,DreamHill/ReactiveCocoa,llb1119/test,howandhao/ReactiveCocoa,ohwutup/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,towik/ReactiveCocoa,imkerberos/ReactiveCocoa,lixar/ReactiveCocoa,Pingco/ReactiveCocoa,longv2go/ReactiveCocoa,xiaoliyang/ReactiveCocoa,mxxiv/ReactiveCocoa,victorlin/ReactiveCocoa,emodeqidao/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,jaylib/ReactiveCocoa,jaylib/ReactiveCocoa,bscarano/ReactiveCocoa,Juraldinio/ReactiveCocoa,stevielu/ReactiveCocoa,kiurentu/ReactiveCocoa,Pingco/ReactiveCocoa,huiping192/ReactiveCocoa,ceekayel/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,yizzuide/ReactiveCocoa,kevin-zqw/ReactiveCocoa,SanChain/ReactiveCocoa,zhiwen1024/ReactiveCocoa,KuPai32G/ReactiveCocoa,sandyway/ReactiveCocoa,cstars135/ReactiveCocoa,vincentiss/ReactiveCocoa,taylormoonxu/ReactiveCocoa,gengjf/ReactiveCocoa,beni55/ReactiveCocoa,wangqi211/ReactiveCocoa,JohnJin007/ReactiveCocoa,wangqi211/ReactiveCocoa,yoichitgy/ReactiveCocoa,jaylib/ReactiveCocoa,xulibao/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,taylormoonxu/ReactiveCocoa,zzzworm/ReactiveCocoa,bscarano/ReactiveCocoa,liufeigit/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,dz1111/ReactiveCocoa,sdhzwm/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,esttorhe/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,fanghao085/ReactiveCocoa,kiurentu/ReactiveCocoa,hj3938/ReactiveCocoa,BrooksWon/ReactiveCocoa,OneSmallTree/ReactiveCocoa,j364960953/ReactiveCocoa,mattpetters/ReactiveCocoa,esttorhe/ReactiveCocoa,gengjf/ReactiveCocoa,WEIBP/ReactiveCocoa,add715/ReactiveCocoa,alvinvarghese/ReactiveCocoa,buildo/ReactiveCocoa,clg0118/ReactiveCocoa,zhiwen1024/ReactiveCocoa,DreamHill/ReactiveCocoa,stevielu/ReactiveCocoa,fhchina/ReactiveCocoa,fhchina/ReactiveCocoa,cstars135/ReactiveCocoa,ShawnLeee/ReactiveCocoa,monkeydbobo/ReactiveCocoa,imkerberos/ReactiveCocoa,Ray0218/ReactiveCocoa,Farteen/ReactiveCocoa,qq644531343/ReactiveCocoa,AlanJN/ReactiveCocoa,mxxiv/ReactiveCocoa,ceekayel/ReactiveCocoa,isghe/ReactiveCocoa,richeterre/ReactiveCocoa,tornade0913/ReactiveCocoa,goodheart/ReactiveCocoa,zhenlove/ReactiveCocoa,Khan/ReactiveCocoa,zhiwen1024/ReactiveCocoa,CQXfly/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,bensonday/ReactiveCocoa,emodeqidao/ReactiveCocoa,monkeydbobo/ReactiveCocoa,sugar2010/ReactiveCocoa,hoanganh6491/ReactiveCocoa,tonyarnold/ReactiveCocoa,shaohung001/ReactiveCocoa,yizzuide/ReactiveCocoa,walkingsmarts/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,longv2go/ReactiveCocoa,ioshger0125/ReactiveCocoa,icepy/ReactiveCocoa,Farteen/ReactiveCocoa,victorlin/ReactiveCocoa,tornade0913/ReactiveCocoa,Rupert-RR/ReactiveCocoa,vincentiss/ReactiveCocoa,zhukaixy/ReactiveCocoa,kiurentu/ReactiveCocoa,emodeqidao/ReactiveCocoa,tonyarnold/ReactiveCocoa,sujeking/ReactiveCocoa,xulibao/ReactiveCocoa,ioshger0125/ReactiveCocoa,brasbug/ReactiveCocoa,bensonday/ReactiveCocoa,FelixYin66/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,terry408911/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,clg0118/ReactiveCocoa,itschaitanya/ReactiveCocoa,towik/ReactiveCocoa,jackywpy/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,nikita-leonov/ReactiveCocoa,200895045/ReactiveCocoa,eyu1988/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,chieryw/ReactiveCocoa,Eveian/ReactiveCocoa,rpowelll/ReactiveCocoa,ericzhou2008/ReactiveCocoa,zhigang1992/ReactiveCocoa,towik/ReactiveCocoa,xiaoliyang/ReactiveCocoa,huiping192/ReactiveCocoa,wpstarnice/ReactiveCocoa,Ethan89/ReactiveCocoa,jeelun/ReactiveCocoa,gengjf/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,leelili/ReactiveCocoa,tzongw/ReactiveCocoa,zhigang1992/ReactiveCocoa,add715/ReactiveCocoa,almassapargali/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,calebd/ReactiveCocoa,xiaobing2007/ReactiveCocoa,j364960953/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,ericzhou2008/ReactiveCocoa,goodheart/ReactiveCocoa,SanChain/ReactiveCocoa,ddc391565320/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,xiaobing2007/ReactiveCocoa