IntensionalInheritance evaluation will work
Merge github.com:opencog/opencog
PLN doing 3 step inferences with variables
Fix the example that came with the SUMO test.
some of the helper functions and get-instance-name
 helper function choose-var-name and few other corrections
make get-instance-name handle relex2logic output from relx and human inputs
Added InterpretationLink & InterpretationNode to handle the different interpretations of a single parse of a sentence
added PossessionLink & QuantityLink
 added SVO, SV & SVP rule from ruiting;
changed the name of those-rule to det-rule;
modified det-rule so as to handle that, this, these determiners.
modification on the hierarchy of certain atoms for Relex2Logic
few corrections
merged woman and man rule into gender-rule
recatagorize QuantityLink & delete PossesionLink
Added new Nodes for describing nlp and general relationship
Fix for issue #394

We really shouldn't be generating the AV-changed signal here.
Merge pull request #541 from linas/deadlock

Fix for issue #394
Merge github.com:opencog/opencog
MemberToInheritance and MemberToEvaluation
Add log for ImportanceSpreadingAgent with activity details.