2.0 (build 17.1-rev1)

Release Notes:

Semantika Core Runtime 1.7.1. Uses the most updated Semantika release. More info about Semantika Core Runtime 1.7.1 release note.

Change Notes:

• The termination flag is no longer two same characters but instead use a blank line to terminate the query input.
• Add a new option -debug to print debugging message.