Guard RKRequestQueue containsRequest: with @synchronized. closes #690
Guard RKRequestQueue containsRequest: with @synchronized. closes #690

lmirosevic/RestKit,paperlesspost/RestKit,nett55/RestKit,moneytree/RestKit,agworld/RestKit,vilinskiy-playdayteam/RestKit,jrtaal/RestKit,wireitcollege/RestKit,nphkh/RestKit,HarrisLee/RestKit,timbodeit/RestKit,kevmeyer/RestKit,adozenlines/RestKit,0x73/RestKit,CodewareTechnology/RestKit,hanangellove/RestKit,ChinaPicture/RestKit,zilaiyedaren/RestKit,Gaantz/RestKit,baumatron/RestKit,pbogdanv/RestKit,oligriffiths/RestKit,Bogon/RestKit,wireitcollege/RestKit,gank0326/restkit,StasanTelnov/RestKit,nalindz/pulpfiction-RestKit,naqi/RestKit,LiuShulong/RestKit,nalindz/pulpfiction-RestKit,kevmeyer/RestKit,wyzzarz/RestKit,concreteinteractive/RestKit,CenterDevice/RestKit,braindata/RestKit,wyzzarz/RestKit,mikarun/RestKit,Flutterbee/RestKit,mavericksunny/RestKit,RestKit/RestKit,hejunbinlan/RestKit,LiuShulong/RestKit,apontador/RestKit,ForrestAlfred/RestKit,hanangellove/RestKit,ChinaPicture/RestKit,pat2man/RestKit,agworld/RestKit,zaichang/RestKit,braindata/RestKit-1,ForrestAlfred/RestKit,Meihualu/RestKit,moritzh/RestKit,braindata/RestKit,loverbabyz/RestKit,oye-lionel/GithubTest,youssman/RestKit,percysnoodle/RestKit,zaichang/RestKit,margarina/RestKit-latest,wuxsoft/RestKit,sachin-khard/NucRestKit,timbodeit/RestKit,jonesgithub/RestKit,HarrisLee/RestKit,Papercloud/RestKit,antondarki/RestKit,aleufms/RestKit,moritzh/RestKit,common2015/RestKit,zaichang/RestKit,sachin-khard/NucleusRestKit,hejunbinlan/RestKit,oye-lionel/GithubTest,RyanCodes/RestKit,zhenlove/RestKit,Bogon/RestKit,mumer92/RestKit,oligriffiths/RestKit,erichedstrom/RestKit,CenterDevice/RestKit,oligriffiths/RestKit,sandyway/RestKit,sandyway/RestKit,nalindz/pulpfiction-RestKit,apontador/RestKit,dx285/RestKit,money-alex2006hw/RestKit,sandyway/RestKit,moritzh/RestKit,zilaiyedaren/RestKit,REXLabsInc/RestKit,Flutterbee/RestKit,taptaptap/RestKit,sachin-khard/NucleusRestKit,sandyway/RestKit,Livestream/RestKit,ChinaPicture/RestKit,Gaantz/RestKit,djz-code/RestKit,Juraldinio/RestKit,sachin-khard/NucRestKit,timbodeit/RestKit,zjh171/RestKit,DocuSignDev/RestKit,Juraldinio/RestKit,mikarun/RestKit,mberube09/RestKit,goldstar/RestKit,fhchina/RestKit,canaydogan/RestKit,fhchina/RestKit,fhchina/RestKit,common2015/RestKit,zjh171/RestKit,gauravstomar/RestKit,dx285/RestKit,zaichang/RestKit,jonesgithub/RestKit,margarina/RestKit-latest,kevmeyer/RestKit,percysnoodle/RestKit,cryptojuice/RestKit,braindata/RestKit-1,antondarki/RestKit,djz-code/RestKit,moneytree/RestKit,nalindz/pulpfiction-RestKit,0x73/RestKit,fhchina/RestKit,concreteinteractive/RestKit,zilaiyedaren/RestKit,hejunbinlan/RestKit,zhenlove/RestKit,Flutterbee/RestKit,imton/RestKit,REXLabsInc/RestKit,PonderProducts/RestKit,jrtaal/RestKit,aleufms/RestKit,Juraldinio/RestKit,Bogon/RestKit,apontador/RestKit,QLGu/RestKit,lmirosevic/RestKit,mavericksunny/RestKit,jrtaal/RestKit,mumer92/RestKit,nett55/RestKit,caamorales/RestKit,fedegasp/RestKit,samkrishna/RestKit,oye-lionel/GithubTest,RestKit/RestKit,timbodeit/RestKit,dx285/RestKit,justinyaoqi/RestKit,qingsong-xu/RestKit,gauravstomar/RestKit,lmirosevic/RestKit,qingsong-xu/RestKit,mberube09/RestKit,CodewareTechnology/RestKit,Bogon/RestKit,Juraldinio/RestKit,fedegasp/RestKit,jrtaal/RestKit,sachin-khard/NucRestKit,kevmeyer/RestKit,apontador/RestKit,lucasecf/RestKit,0dayZh/RestKit,coderChrisLee/RestKit,gumdal/RestKit,nphkh/RestKit,justinyaoqi/RestKit,ppierson/RestKit,cfis/RestKit,agworld/RestKit,moritzh/RestKit,wangjiangwen/RestKit,adozenlines/RestKit,samanalysis/RestKit,caamorales/RestKit,sachin-khard/NucRestKit,TheFarm/RestKit,REXLabsInc/RestKit,erichedstrom/RestKit,cnbin/RestKit,canaydogan/RestKit,erichedstrom/RestKit,canaydogan/RestKit,justinyaoqi/RestKit,adozenlines/RestKit,gauravstomar/RestKit,LiuShulong/RestKit,money-alex2006hw/RestKit,money-alex2006hw/RestKit,imton/RestKit,pbogdanv/RestKit,Meihualu/RestKit,SuPair/RestKit,youssman/RestKit,pat2man/RestKit,fhchina/RestKit,cnbin/RestKit,lucasecf/RestKit,pat2man/RestKit,pat2man/RestKit,gumdal/RestKit,wangjiangwen/RestKit,oligriffiths/RestKit,hanangellove/RestKit,cnbin/RestKit,naqi/RestKit,ppierson/RestKit,DejaMi/RestKit,QLGu/RestKit,RyanCodes/RestKit,margarina/RestKit-latest,Meihualu/RestKit,margarina/RestKit-latest,vilinskiy-playdayteam/RestKit,zilaiyedaren/RestKit,vilinskiy-playdayteam/RestKit,moneytree/RestKit,braindata/RestKit,wangjiangwen/RestKit,wyzzarz/RestKit,djz-code/RestKit,SuPair/RestKit,zhenlove/RestKit,antondarki/RestKit,jonesgithub/RestKit,ForrestAlfred/RestKit,taptaptap/RestKit,cnbin/RestKit,adozenlines/RestKit,wangjiangwen/RestKit,money-alex2006hw/RestKit,baumatron/RestKit,pat2man/RestKit,sandyway/RestKit,lmirosevic/RestKit,cnbin/RestKit,HarrisLee/RestKit,DejaMi/RestKit,oye-lionel/GithubTest,Meihualu/RestKit,common2015/RestKit,damiannz/RestKit,nphkh/RestKit,imton/RestKit,HarrisLee/RestKit,nett55/RestKit,Livestream/RestKit,baumatron/RestKit,DejaMi/RestKit,jrtaal/RestKit,gank0326/restkit,ChinaPicture/RestKit,mberube09/RestKit,damiannz/RestKit,loverbabyz/RestKit,antondarki/RestKit,moneytree/RestKit,wuxsoft/RestKit,adozenlines/RestKit,coder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