Fixes issue when building documentation with spaces in the project directory path.
Fixes issue when building documentation with spaces in the project directory path.

HSFGitHub/GPUImage,cocologics/GPUImage,jimydotorg/GGGPUImage,BlessNeo/GPUImage,njucsyyh/GPUImage,mingming1986/GPUImage,mervekeles/repo,0x4d52/GPUImage,alex-learn/GPUImage,cookov/GPUImage,devluyy/GPUImage,pcKanso/GPUImage,csjlengxiang/GPUImage,hanangellove/GPUImage,cnbin/GPUImage,SanjoDeundiak/GPUImage,Naithar/GPUImage,skonb/GPUImage,agan112/GPUImage,mumer92/GPUImage,eunmin/GPUImage,lauraskelton/GPUImage,howandhao/GPUImage,j364960953/GPUImage,SanjoDeundiak/GPUImage,dachaoisme/GPUImage,zakinaeem/GPUImage,picmonkey/GPUImage,r3mus/GPUImage,eunmin/GPUImage,FiftyThree/GPUImage,denivip/GPUImage,BradLarson/GPUImage,nickplee/GPUImage,SanjoDeundiak/GPUImage,evfemist/GPUImage,BlessNeo/GPUImage,jakeva/GPUImage,cesare-montresor/GPUImage,njucsyyh/GPUImage,Hybridity/GPUImage,TimorCan/GPUImage,shi-yan/GPUImage,ohad7/GPUImage,cesare-montresor/GPUImage,937447974/GPUImage,thinkrad/GPUImage,skonb/GPUImage,sujeking/GPUImage,PlanetaToBe/GPUImage,tuo/GPUImage,odyth/GPUImage,IncredibleDucky/GPUImage,AlanJN/GPUImage,silvansky/GPUImage,rromanchuk/GPUImage,nonoBruce/GPUImage,kalsariyac/GPUImage,pevasquez/GPUImage,mervekeles/GPUImage,duanhjlt/GPUImage,u-engine/GPUImage,rtsbtx/GPUImage,lauraskelton/GPUImage,3drobotics/GPUImage,DavidWangTM/GPUImage,TimorCan/GPUImage,horaceho/GPUImage,eighteight/GPUImage,ashishgabani/GPUImage,UndaApp/GPUImage,xqz001/GPUImage,haikusw/GPUImage,DavidWangTM/GPUImage,sdonly/GPUImage,jianwoo/GPUImage,TuSDK/GPUImage,Matzo/GPUImage,drewwilson/GPUImage,somegeekintn/GPUImage,KBvsMJ/GPUImage,jianwoo/GPUImage,yshiga/GPUImage,agan112/GPUImage,yaoxiaoyong/GPUImage,drewwilson/GPUImage,0x4d52/GPUImage,geowarsong/GPUImage,PodRepo/GPUImage,agan112/GPUImage,wysaid/GPUImage,rtsbtx/GPUImage,lydonchandra/GPUImage,liduanw/GPUImage,dawangjiaowolaixunshan/GPUImage,xingyuniu/GPUImage,silvansky/GPUImage,bgulanowski/GPUImage,RavishankarDuMCA10/GPUImage,ozetadev/GPUImage,sujeking/GPUImage,somegeekintn/GPUImage,lauraskelton/GPUImage,ramoslin02/GPUImage,BlessNeo/GPUImage,lacyrhoades/GPUImage,u-engine/GPUImage,ohad7/GPUImage,jackeychens/GPUImage,njucsyyh/GPUImage,bgulanowski/GPUImage,liduanw/GPUImage,RavishankarDuMCA10/GPUImage,937447974/GPUImage,gank0326/GPUImage,Creolophus/GPUImage,stelabouras/GPUImage,YuAo/GPUImage,sprint84/GPUImage,lydonchandra/GPUImage,Creolophus/GPUImage,wjszf/GPUImage,PlanetaToBe/GPUImage,wjszf/GPUImage,sansuiso/GPUImage,yimouleng/GPUImage,xqz001/GPUImage,hgl888/GPUImage,wysaid/GPUImage,Lcarvajal/GPUImage,appone/GPUImage,alex-learn/GPUImage,StratAguilar/GPUImage,inb4ohnoes/GPUImage,Learn-IOS/GPUImage,horaceho/GPUImage,IncredibleDucky/GPUImage,smule/GPUImage,loi32456/GPUImage,LIQC/GPUImage,Kevin775263419/GPUImage,yaoxiaoyong/GPUImage,eighteight/GPUImage,jackeychens/GPUImage,BradLarson/GPUImage,efremidze/GPUImage,nonoBruce/GPUImage,lacyrhoades/GPUImage,mervekeles/GPUImage,Slin/GPUImage,nickplee/GPUImage,tastyone/GPUImage,AmiaoCat/GPUImage,headupinclouds/GPUImage,Matzo/GPUImage,lauraskelton/GPUImage,xingyuniu/GPUImage,mumer92/GPUImage,stelabouras/GPUImage,pengleelove/GPUImage,mad102190/GPUImage,loi32456/GPUImage,Naithar/GPUImage,odyth/GPUImage,zakinaeem/GPUImage,SuPair/GPUImage,hoanganhx86/GPUImage,powerhome/GPUImage,headupinclouds/GPUImage,SanChain/GPUImage,mattwymore/GPUImage,Matzo/GPUImage,lily4ever/GPUImage,mtxs007/GPUImage,PodRepo/GPUImage,bragil-massoud/GPUImage,ohad7/GPUImage,appone/GPUImage,mattwymore/GPUImage,hgl888/GPUImage,thinkrad/GPUImage,hanton/GPUImage,YuAo/GPUImage,SinnerSchraderMobileMirrors/GPUImage,picmonkey/GPUImage,geowarsong/GPUImage,jsharp83/GPUImage,liduanw/GPUImage,wysaid/GPUImage,hanangellove/GPUImage,faceleg/GPUImage,jimydotorg/GGGPUImage,cocologics/GPUImage,AskaCai/GPUImage,pengleelove/GPUImage,hyperconnect/GPUImage,levyleo/LGPUImage,hanangellove/GPUImage,sprint84/GPUImage,YuAo/GPUImage,UltravisualApp/GPUImage,StratAguilar/GPUImage,pengleelove/GPUImage,headupinclouds/GPUImage,mad102190/GPUImage,hoanganhx86/GPUImage,zilaiyedaren/GPUImage,SinnerSchraderMobileMirrors/GPUImage,IncredibleDucky/GPUImage,mingming1986/GPUImage,Kevin775263419/GPUImage,lily4ever/GPUImage,wfxiang08/GPUImage,duanhjlt/GPUImage,stelabouras/GPUImage,wangwei1237/GPUImage,jackeychens/GPUImage,inb4ohnoes/GPUImage,ashishgabani/GPUImage,eighteight/GPUImage,hyperconnect/GPUImage,jakeva/GPUImage,rocklive/GPUImage,FiftyThree/GPUImage,Learn-IOS/GPUImage,BradLarson/GPUImage,hgl888/GPUImage,cocologics/GPUImage,java02014/GPUImage,faceleg/GPUImage,appone/GPUImage,cesare-montresor/GPUImage,hakanw/GPUImage,appone/GPUImage,zzhhui/GPUImage,zilaiyedaren/GPUImage,wangwei1237/GPUImage,TuSDK/GPUImage,howandhao/GPUImage,efremidze/GPUImage,3drobotics/GPUImage,wfxiang08/GPUImage,tuo/GPUImage,devluyy/GPUImage,mumer92/GPUImage,dawangjiaowolaixunshan/GPUImage,HSFGitHub/GPUImage,lauraskelton/GPUImage,zzhhui/GPUImage,LIQC/GPUImage,bgulanowski/GPUImage,rromanchuk/GPUImage,birthmark/GPUImage,j364960953/GPUImage,SinnerSchraderMobileMirrors/GPUImage,SanChain/GPUImage,AskaCai/GPUImage,powerhome/GPUImage,zhengfuzhe2013/GPUImage,tastyone/GPUImage,bragil-massoud/GPUImage,tuo/GPUImage,yshiga/GPUImage,msfeldstein/GPUImage,xingyuniu/GPUImage,bragil-massoud/GPUImage,mad102190/GPUImage,jsharp83/GPUImage,Slin/GPUImage,pevasquez/GPUImage,rtsbtx/GPUImage,sdonly/GPUImage,cocologics/GPUImage,msfeldstein/GPUImage,FiftyThree/GPUImage,DepositDev/GPUImage,sansuiso/GPUImage,evfemist/GPUImage,KBvsMJ/GPUImage,gank0326/GPUImage,jimydotorg/GGGPUImage,FiftyThree/GPUImage,stelabouras/GPUImage,birthmark/GPUImage,hakanw/GPUImage,java02014/GPUImage,ramoslin02/GPUImage,Slin/GPUImage,jsharp83/GPUImage,cesare-montresor/GPUImage,jianwoo/GPUImage,3drobotics/GPUImage,faceleg/GPUImage,0x4d52/GPUImage,ask-fm/GPUImage,hoanganhx86/GPUImage,SinnerSchraderMobileMirrors/GPUImage,mervekeles/repo,SanChain/GPUImage,yimouleng/GPUImage,shi-yan/GPUImage,gank0326/GPUImage,AlanJN/GPUImage,hanton/GPUImage,DepositDev/GPUImage,KBvsMJ/GPUImage,odyth/GPUImage,r3mus/GPUImage,zhengfuzhe2013/GPUImage,u-engine/GPUImage,powerhome/GPUImage,UltravisualApp/GPUImage,denivip/GPUImage,zakinaeem/GPUImage,jimydotorg/GGGPUImage,drewwilson/GPUImage,kalsariyac/GPUImage,wjszf/GPUImage,nickplee/GPUImage,catbus/GPUImage,Creolophus/GPUImage,pcKanso/GPUImage,hakanw/GPUImage,smule/GPUImage,tastyone/GPUImage,cookov/GPUImage,haikusw/GPUImage,sprint84/GPUImage,SuPair/GPUImage,skonb/GPUImage,rromanchuk/GPUImage,csjlengxiang/GPUImage,catbus/GPUImage,howandhao/GPUImage,ask-fm/GPUImage,DavidWangTM/GPUImage,levyleo/LGPUImage,Lcarvajal/GPUImage,Learn-IOS/GPUImage,Hybridity/GPUImage,ozetadev/GPUImage,kalsariyac/GPUImage,sansuiso/GPUImage,UndaApp/GPUImage,AmiaoCat/GPUImage,zhengfuzhe2013/GPUImage,rocklive/GPUImage,picmonkey/GPUImage,mtxs007/GPUImage,silvansky/GPUImage,cnbin/GPUImage,dachaoisme/GPUImage