Fix code duplication in spark-adaptor.
Remove code duplication from voodoospark-adaptor
Improve test coverage on disconnect.
Updated test coverage, update devdependencies.
WIP on test coverage and improving code climate score.
WIP on test coverage for voodoospark
Improve test coverate for voodoospark
Merge pull request #25 from hybridgroup/test-coverage-code-climate

Improve test coverage and code climate score for voodoospark.