Put back the cleanup of history templates containing variables that was commented out in chainers.py
Put back the cleanup of history templates containing variables that was commented out in chainers.py

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