Add PutLink unit test for partial substitution
Add PutLink unit test for partial substitution

rTreutlein/atomspace,misgeatgit/atomspace,inflector/atomspace,misgeatgit/atomspace,cosmoharrigan/atomspace,AmeBel/atomspace,inflector/atomspace,rodsol/atomspace,ArvinPan/atomspace,ceefour/atomspace,AmeBel/atomspace,yantrabuddhi/atomspace,ceefour/atomspace,misgeatgit/atomspace,inflector/atomspace,rTreutlein/atomspace,misgeatgit/atomspace,rodsol/atomspace,cosmoharrigan/atomspace,inflector/atomspace,rTreutlein/atomspace,yantrabuddhi/atomspace,misgeatgit/atomspace,AmeBel/atomspace,AmeBel/atomspace,williampma/atomspace,cosmoharrigan/atomspace,rTreutlein/atomspace,yantrabuddhi/atomspace,williampma/atomspace,rodsol/atomspace,ArvinPan/atomspace,yantrabuddhi/atomspace,rodsol/atomspace,inflector/atomspace,rTreutlein/atomspace,williampma/atomspace,ceefour/atomspace,cosmoharrigan/atomspace,ceefour/atomspace,yantrabuddhi/atomspace,AmeBel/atomspace,williampma/atomspace,ArvinPan/atomspace,ArvinPan/atomspace