Merge pull request #18 from graimundo/master

[SPARKL-66] - CPK endpoints for Kettle Jobs now only return the result of the Job
[CLEANUP] - Excluded unused ivy dependency
Merge pull request #19 from marcovala/master

[CLEANUP] - Excluded unused ivy dependency
[SPARKL-69] - Changed default behaviour of inferedKettleOutput to use jsonKettleOutput when a Job result contains rows
[SPARKL-69] - Updated Readme to reflect new inferred result formatting logic