Update Podspec to 0.1.6
Update Podspec to 0.1.6

The 0.1.6 release didn't update the podspec, so updates for Cocoapods users weren't working. Thanks for the great project!
Lcarvajal/GPUImage,ashishgabani/GPUImage,SanChain/GPUImage,IncredibleDucky/GPUImage,odyth/GPUImage,dawangjiaowolaixunshan/GPUImage,mad102190/GPUImage,agan112/GPUImage,TuSDK/GPUImage,xingyuniu/GPUImage,gank0326/GPUImage,ramoslin02/GPUImage,pevasquez/GPUImage,sprint84/GPUImage,denivip/GPUImage,skonb/GPUImage,gank0326/GPUImage,tastyone/GPUImage,devluyy/GPUImage,TimorCan/GPUImage,tuo/GPUImage,howandhao/GPUImage,jsharp83/GPUImage,mumer92/GPUImage,kalsariyac/GPUImage,xqz001/GPUImage,nonoBruce/GPUImage,0x4d52/GPUImage,zakinaeem/GPUImage,eunmin/GPUImage,tastyone/GPUImage,skonb/GPUImage,drewwilson/GPUImage,jackeychens/GPUImage,hakanw/GPUImage,r3mus/GPUImage,sdonly/GPUImage,IncredibleDucky/GPUImage,hgl888/GPUImage,yshiga/GPUImage,bgulanowski/GPUImage,AskaCai/GPUImage,PlanetaToBe/GPUImage,SanChain/GPUImage,rromanchuk/GPUImage,somegeekintn/GPUImage,zhengfuzhe2013/GPUImage,liduanw/GPUImage,devluyy/GPUImage,nonoBruce/GPUImage,java02014/GPUImage,hyperconnect/GPUImage,KBvsMJ/GPUImage,kalsariyac/GPUImage,dachaoisme/GPUImage,jsharp83/GPUImage,TuSDK/GPUImage,hanangellove/GPUImage,mervekeles/GPUImage,rromanchuk/GPUImage,Matzo/GPUImage,mad102190/GPUImage,rtsbtx/GPUImage,thinkrad/GPUImage,LIQC/GPUImage,kalsariyac/GPUImage,nickplee/GPUImage,alex-learn/GPUImage,hanangellove/GPUImage,drewwilson/GPUImage,wangwei1237/GPUImage,yshiga/GPUImage,sansuiso/GPUImage,wjszf/GPUImage,eighteight/GPUImage,lydonchandra/GPUImage,thinkrad/GPUImage,eighteight/GPUImage,937447974/GPUImage,hanton/GPUImage,PodRepo/GPUImage,mattwymore/GPUImage,StratAguilar/GPUImage,mingming1986/GPUImage,hanangellove/GPUImage,YuAo/GPUImage,lily4ever/GPUImage,jackeychens/GPUImage,denivip/GPUImage,wjszf/GPUImage,TimorCan/GPUImage,HSFGitHub/GPUImage,SanjoDeundiak/GPUImage,lacyrhoades/GPUImage,cookov/GPUImage,SanjoDeundiak/GPUImage,0x4d52/GPUImage,birthmark/GPUImage,mumer92/GPUImage,headupinclouds/GPUImage,mingming1986/GPUImage,howandhao/GPUImage,liduanw/GPUImage,pcKanso/GPUImage,zakinaeem/GPUImage,odyth/GPUImage,msfeldstein/GPUImage,somegeekintn/GPUImage,hakanw/GPUImage,sprint84/GPUImage,zilaiyedaren/GPUImage,BradLarson/GPUImage,shi-yan/GPUImage,Creolophus/GPUImage,jackeychens/GPUImage,Matzo/GPUImage,horaceho/GPUImage,lydonchandra/GPUImage,3drobotics/GPUImage,hakanw/GPUImage,UndaApp/GPUImage,0x4d52/GPUImage,mtxs007/GPUImage,nickplee/GPUImage,shi-yan/GPUImage,IncredibleDucky/GPUImage,jsharp83/GPUImage,mad102190/GPUImage,liduanw/GPUImage,loi32456/GPUImage,wfxiang08/GPUImage,hoanganhx86/GPUImage,lacyrhoades/GPUImage,sansuiso/GPUImage,ohad7/GPUImage,xingyuniu/GPUImage,mumer92/GPUImage,ohad7/GPUImage,ashishgabani/GPUImage,3drobotics/GPUImage,jianwoo/GPUImage,AlanJN/GPUImage,csjlengxiang/GPUImage,hgl888/GPUImage,jakeva/GPUImage,AmiaoCat/GPUImage,faceleg/GPUImage,u-engine/GPUImage,UltravisualApp/GPUImage,njucsyyh/GPUImage,ohad7/GPUImage,smule/GPUImage,StratAguilar/GPUImage,gank0326/GPUImage,cookov/GPUImage,UndaApp/GPUImage,BradLarson/GPUImage,zzhhui/GPUImage,BradLarson/GPUImage,bgulanowski/GPUImage,mervekeles/GPUImage,howandhao/GPUImage,sujeking/GPUImage,silvansky/GPUImage,DavidWangTM/GPUImage,java02014/GPUImage,SanjoDeundiak/GPUImage,nickplee/GPUImage,rtsbtx/GPUImage,levyleo/LGPUImage,u-engine/GPUImage,3drobotics/GPUImage,wjszf/GPUImage,KBvsMJ/GPUImage,faceleg/GPUImage,LIQC/GPUImage,yimouleng/GPUImage,Slin/GPUImage,sujeking/GPUImage,SuPair/GPUImage,SuPair/GPUImage,mervekeles/repo,faceleg/GPUImage,hgl888/GPUImage,jianwoo/GPUImage,haikusw/GPUImage,horaceho/GPUImage,sansuiso/GPUImage,zhengfuzhe2013/GPUImage,xingyuniu/GPUImage,pengleelove/GPUImage,levyleo/LGPUImage,ozetadev/GPUImage,Learn-IOS/GPUImage,mattwymore/GPUImage,RavishankarDuMCA10/GPUImage,rromanchuk/GPUImage,ramoslin02/GPUImage,drewwilson/GPUImage,njucsyyh/GPUImage,YuAo/GPUImage,dachaoisme/GPUImage,alex-learn/GPUImage,agan112/GPUImage,smule/GPUImage,Kevin775263419/GPUImage,jianwoo/GPUImage,cnbin/GPUImage,duanhjlt/GPUImage,jakeva/GPUImage,HSFGitHub/GPUImage,silvansky/GPUImage,SanChain/GPUImage,AlanJN/GPUImage,efremidze/GPUImage,xqz001/GPUImage,BlessNeo/GPUImage,inb4ohnoes/GPUImage,sdonly/GPUImage,geowarsong/GPUImage,njucsyyh/GPUImage,Kevin775263419/GPUImage,headupinclouds/GPUImage,catbus/GPUImage,tuo/GPUImage,YuAo/GPUImage,PlanetaToBe/GPUImage,wangwei1237/GPUImage,RavishankarDuMCA10/GPUImage,Learn-IOS/GPUImage,mtxs007/GPUImage,BlessNeo/GPUImage,r3mus/GPUImage,wysaid/GPUImage,yaoxiaoyong/GPUImage,Slin/GPUImage,birthmark/GPUImage,sprint84/GPUImage,msfeldstein/GPUImage,yimouleng/GPUImage,yaoxiaoyong/GPUImage,DavidWangTM/GPUImage,powerhome/GPUImage,PodRepo/GPUImage,eunmin/GPUImage,wfxiang08/GPUImage,dawangjiaowolaixunshan/GPUImage,haikusw/GPUImage,powerhome/GPUImage,BlessNeo/GPUImage,KBvsMJ/GPUImage,pevasquez/GPUImage,hoanganhx86/GPUImage,bgulanowski/GPUImage,DavidWangTM/GPUImage,zzhhui/GPUImage,headupinclouds/GPUImage,eighteight/GPUImage,loi32456/GPUImage,ozetadev/GPUImage,j364960953/GPUImage,j364960953/GPUImage,tastyone/GPUImage,Slin/GPUImage,zhengfuzhe2013/GPUImage,wysaid/GPUImage,csjlengxiang/GPUImage,tuo/GPUImage,odyth/GPUIm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