Enhancements to handle fixed types, multi-type unions and top-level unions.
[PDI-9064] Add the ability to unwind a JSON array in the MongoDB input Step.
Unit tests for MongoDbInput.
Merge pull request #85 from m-a-hall/avroUnions

[PDI-9186] Add support for multi-type unions, fixed types and top-level unions to the AvroInput step
Fixed failing unit tests (due to changes introduced in core PDI for pluggable types).
Merge pull request #86 from m-a-hall/avroUnitTestFixes

Fixed failing unit tests (due to changes introduced in core PDI for pluggable types)
Authentication against a Mongo db now uses authenticateCommand() instead of authenticate() in order to report error information when authentication fails.
Merge pull request #87 from m-a-hall/mongoInOutImprovements

[PDI-9064] Add the ability to unwind a JSON array in the MongoDB input Step
[PDI-9206] Ability for the MongoDB output step to be able to convert and insert a JSON string into MongoDB.
[PDI-9206] Ability for the MongoDB output step to be able to convert and insert a JSON string into MongoDB. Unit tests for new functionality.
Removed an unused member variable.
Merge pull request #88 from m-a-hall/mongoInOutImprovements

[PDI-9206] Ability for the MongoDB output step to be able to convert and insert a JSON string into MongoDB.
PDI-9048: Only load active Hadoop configuration
Removing mongo classes. They've been moved to a seperate repository