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
Optimized function
Documentations and few syntax corrections
Refactor relex2logic helper functions for better readablility
and for cpu savings
Merge pull request #540 from AmeBel/r2l

Relex2Logic additions