Visitor Class and Unit Tests
libraries needed for unit tests
constants,utilities,unit test and ddl files.
Merge pull request #5 from syediqbal/master

Visitor,Utilities, Constants and Test Classes
Removed duplicate declarations, formatted for readability
merged in master
Merge pull request #6 from jmarley/cleaned-up-pom

Cleaned up pom
Merge pull request #7 from jmarley/interpretive_json_strategy

refactoring of converter code. adding null check. add boost unit test coverage to 83%
after rebasing with master
after rebasing with master