Make randset more generic and return a const reference instead of a copy
Make randset more generic and return a const reference instead of a copy

Return a const ref instead of a copy for efficiency reasons.

ArvinPan/opencog,iAMr00t/opencog,inflector/opencog,andre-senna/opencog,jswiergo/atomspace,rohit12/opencog,virneo/opencog,inflector/atomspace,roselleebarle04/opencog,cosmoharrigan/opencog,printedheart/atomspace,williampma/atomspace,tim777z/opencog,zhaozengguang/opencog,tim777z/opencog,inflector/atomspace,roselleebarle04/opencog,kim135797531/opencog,TheNameIsNigel/opencog,jlegendary/opencog,virneo/opencog,virneo/atomspace,misgeatgit/opencog,kim135797531/opencog,misgeatgit/atomspace,jswiergo/atomspace,zhaozengguang/opencog,Selameab/opencog,Tiggels/opencog,rodsol/atomspace,tim777z/opencog,sumitsourabh/opencog,Tiggels/opencog,MarcosPividori/atomspace,TheNameIsNigel/opencog,williampma/opencog,ArvinPan/atomspace,eddiemonroe/atomspace,rohit12/atomspace,AmeBel/opencog,Allend575/opencog,cosmoharrigan/opencog,williampma/opencog,anitzkin/opencog,ArvinPan/opencog,inflector/opencog,rodsol/opencog,shujingke/opencog,Tiggels/opencog,jlegendary/opencog,ArvinPan/opencog,gavrieltal/opencog,yantrabuddhi/atomspace,UIKit0/atomspace,yantrabuddhi/opencog,ceefour/atomspace,printedheart/opencog,shujingke/opencog,tim777z/opencog,rohit12/atomspace,gaapt/opencog,eddiemonroe/atomspace,williampma/opencog,AmeBel/atomspace,rTreutlein/atomspace,MarcosPividori/atomspace,rohit12/opencog,ceefour/opencog,Allend575/opencog,TheNameIsNigel/opencog,sumitsourabh/opencog,misgeatgit/opencog,misgeatgit/opencog,misgeatgit/opencog,misgeatgit/atomspace,sanuj/opencog,misgeatgit/opencog,Selameab/atomspace,UIKit0/atomspace,sanuj/opencog,Selameab/opencog,inflector/opencog,virneo/opencog,ArvinPan/atomspace,cosmoharrigan/atomspace,gaapt/opencog,yantrabuddhi/atomspace,jlegendary/opencog,shujingke/opencog,eddiemonroe/opencog,rodsol/opencog,gaapt/opencog,rohit12/opencog,rodsol/atomspace,gaapt/opencog,eddiemonroe/atomspace,jswiergo/atomspace,cosmoharrigan/atomspace,rohit12/opencog,rodsol/opencog,MarcosPividori/atomspace,kinoc/opencog,AmeBel/opencog,Tiggels/opencog,yantrabuddhi/atomspace,printedheart/opencog,iAMr00t/opencog,kim135797531/opencog,ceefour/opencog,yantrabuddhi/opencog,kinoc/opencog,rTreutlein/atomspace,Selameab/opencog,kinoc/opencog,zhaozengguang/opencog,sumitsourabh/opencog,tim777z/opencog,andre-senna/opencog,ceefour/atomspace,rodsol/opencog,eddiemonroe/atomspace,kinoc/opencog,gaapt/opencog,ArvinPan/atomspace,misgeatgit/atomspace,prateeksaxena2809/opencog,yantrabuddhi/opencog,gaapt/opencog,roselleebarle04/opencog,virneo/atomspace,kinoc/opencog,eddiemonroe/opencog,Selameab/opencog,AmeBel/opencog,AmeBel/atomspace,gavrieltal/opencog,virneo/atomspace,ruiting/opencog,UIKit0/atomspace,TheNameIsNigel/opencog,gavrieltal/opencog,inflector/opencog,AmeBel/atomspace,shujingke/opencog,sanuj/opencog,shujingke/opencog,Selameab/atomspace,ceefour/opencog,TheNameIsNigel/opencog,Allend575/opencog,AmeBel/opencog,inflector/opencog,rodsol/opencog,williampma/opencog,prateeksaxena2809/opencog,misgeatgit/opencog,zhaozengguang/opencog,iAMr00t/opencog,iAMr00t/opencog,anitzkin/opencog,rodsol/opencog,sumitsourabh/opencog,sumitsourabh/opencog,prateeksaxena2809/opencog,TheNameIsNigel/opencog,roselleebarle04/opencog,virneo/opencog,williampma/opencog,Selameab/atomspace,eddiemonroe/opencog,ruiting/opencog,cosmoharrigan/opencog,cosmoharrigan/opencog,rodsol/atomspace,zhaozengguang/opencog,ceefour/atomspace,gavrieltal/opencog,eddiemonroe/opencog,eddiemonroe/opencog,rohit12/atomspace,anitzkin/opencog,yantrabuddhi/atomspace,ruiting/opencog,Selameab/atomspace,ruiting/opencog,anitzkin/opencog,AmeBel/opencog,sanuj/opencog,misgeatgit/opencog,virneo/opencog,shujingke/opencog,virneo/opencog,inflector/opencog,misgeatgit/opencog,prateeksaxena2809/opencog,andre-senna/opencog,printedheart/opencog,Tiggels/opencog,jlegendary/opencog,williampma/atomspace,jlegendary/opencog,AmeBel/atomspace,eddiemonroe/opencog,virneo/atomspace,yantrabuddhi/opencog,ceefour/opencog,virneo/opencog,kim135797531/opencog,cosmoharrigan/opencog,cosmoharrigan/atomspace,gavrieltal/opencog,AmeBel/atomspace,jlegendary/opencog,prateeksaxena2809/opencog,cosmoharrigan/atomspace,ArvinPan/opencog,gavrieltal/opencog,andre-senna/opencog,Allend575/opencog,AmeBel/opencog,ceefour/opencog,inflector/atomspace,ceefour/opencog,anitzkin/opencog,printedheart/atomspace,sumitsourabh/opencog,cosmoharrigan/opencog,Selameab/opencog,rTreutlein/atomspace,kim135797531/opencog,williampma/atomspace,ruiting/opencog,rodsol/atomspace,misgeatgit/atomspace,prateeksaxena2809/opencog,yantrabuddhi/atomspace,roselleebarle04/opencog,ArvinPan/opencog,anitzkin/opencog,printedheart/opencog,iAMr00t/opencog,misgeatgit/atomspace,andre-senna/opencog,sanuj/opencog,kinoc/opencog,shujingke/opencog,AmeBel/opencog,iAMr00t/opencog,misgeatgit/opencog,printedheart/opencog,jswiergo/atomspace,kim135797531/opencog,sanuj/opencog,roselleebarle04/opencog,ceefour/opencog,kim135797531/opencog,zhaozengguang/opencog,williampma/opencog,eddiemonroe/atomspace,tim777z/opencog,printedheart/atomspace,UIKit0/atomspace,ruiting/opencog,andre-senna/opencog,rohit12/opencog,Allend575/opencog,printedheart/atomspace,gaapt/opencog,inflector/opencog,rTreutlein/atomspace,yantrabuddhi/opencog,ArvinPan/atomspace,andre-senna/opencog,roselleebarle04/opencog,inflector/atomspace,Allend575/opencog,ArvinPan/opencog,rTreutlein/atomspace,Tiggels/opencog,rohit12/opencog,yantrabuddhi/opencog,Selameab/opencog,anitzkin/opencog,kinoc/opencog,Allend575/opencog,williampma/atomspace,printedheart/opencog,yantrabuddhi/opencog,rohit12/atomspace,prateeksaxena2809/opencog,sumitsourabh/opencog,inflector/opencog,MarcosPividori/atomspace,ruiting/opencog,inflector/atomspace,ceefour/atomspace,eddiemonroe/opencog,gavrieltal/opencog,jlegendary/opencog