[Code Style] One todo more.
[Filter DSL] Keywords are now can be compared with ‘less’ operator.
[Filter DSL] Keywords are now can be compared with ‘less eq’ operator.
[Filter DSL] Keywords are now can be compared with ‘greater’ operator.
[Unit Testing] Additional test added.
[Unit Testing] Added test to check keyword DSL with equality.
[Filter DSL] Now you can build complex queries with filter DSL including ‘and’, ‘or’ operators.