In opertator

[YaphetKG]

I. Created list support for set statement as :

SET var = ['x','y','z']
Added unit test for checking: (related to #71)

1. list is properly parsed into context memory (Allow specifying lists of nodes for query concepts #69)
2. multiple questions are generated for each item in the list (Allow specifying lists of nodes for query concepts #69)
3. when repeated concepts are used that values are properly set to each concept (Allow repeated concepts with unique, user supplied identifiers #70)

II. Added better error message for Tranql syntax error.