stop using  URE's forward-chainer
stop using  URE's forward-chainer

B/c it's c++ api isn't stable enough.

andre-senna/opencog,inflector/opencog,yantrabuddhi/opencog,misgeatgit/opencog,AmeBel/opencog,rodsol/opencog,shujingke/opencog,rodsol/opencog,ruiting/opencog,andre-senna/opencog,AmeBel/opencog,ruiting/opencog,ruiting/opencog,andre-senna/opencog,cosmoharrigan/opencog,misgeatgit/opencog,AmeBel/opencog,yantrabuddhi/opencog,cosmoharrigan/opencog,misgeatgit/opencog,cosmoharrigan/opencog,misgeatgit/opencog,yantrabuddhi/opencog,inflector/opencog,cosmoharrigan/opencog,rodsol/opencog,misgeatgit/opencog,shujingke/opencog,shujingke/opencog,ruiting/opencog,AmeBel/opencog,rodsol/opencog,inflector/opencog,rodsol/opencog,yantrabuddhi/opencog,shujingke/opencog,AmeBel/opencog,shujingke/opencog,misgeatgit/opencog,cosmoharrigan/opencog,ruiting/opencog,misgeatgit/opencog,andre-senna/opencog,inflector/opencog,andre-senna/opencog,rodsol/opencog,AmeBel/opencog,andre-senna/opencog,ruiting/opencog,misgeatgit/opencog,inflector/opencog,yantrabuddhi/opencog,inflector/opencog,AmeBel/opencog,andre-senna/opencog,shujingke/opencog,yantrabuddhi/opencog,misgeatgit/opencog,shujingke/opencog,inflector/opencog,yantrabuddhi/opencog,ruiting/opencog,inflector/opencog,cosmoharrigan/opencog