Update DOT (graph description language) generator
Update DOT (graph description language) generator

The update is due to change of atomspace's python-api change

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