Also added a test to multi node qa module that tests the datafeeder, which should have caught this.
Original commit: elastic/x-pack-elasticsearch@89e4875f6c
This change adds licensing to the maching learning feature, and only allows access to machine learning if a trial or platinum license is installed.
Further, this change also renames `MlPlugin` to `MachineLearning` in line with the other feature plugin names and move the enabled setting to `XPackSettings`
Original commit: elastic/x-pack-elasticsearch@48ea9d781b
Martijn van Groningen
Colin Goodheart-Smithe
Ryan Ernst