Magpie 2.6
- Support Hadoop 3.1.4, 3.2.2, 3.3.0, 3.3.1
- Update Hadoop default to 3.3.1
- Support Spark 3.0.3-bin-hadoop2.7, 3.0.3-bin-hadoop3.2, Spark 3.0.2-bin-hadoop2.7, 3.0.2-bin-hadoop3.2, Spark 3.0.1-bin-hadoop2.7, 3.0.1-bin-hadoop3.2, Spark 2.4.7-bin-hadoop2.6, 2.4.7-bin-hadoop2.7, Spark 2.4.8-bin-hadoop2.6, 2.4.8-bin-hadoop2.7
- Update Spark default to 3.0.3-bin-hadoop3.2
- Misc fixes
- Documentation updates