GeoPySpark 0.4.3

Removed unused dependencies: cats and py4j

Merge pull request #664 from locationtech-labs/feature/gt-2.0

GeoTrellis 2.0 and tag for 0.4.2

Merge pull request #660 from jbouffard/0.4.1-release

0.4.1 Release

Merge pull request #655 from jbouffard/0.4.0-release

0.4.0 Release

Merge pull request #565 from jbouffard/0.3.0-release

0.3.0 Release Updates

Merge pull request #488 from jbouffard/pre-0.2.2/versions

Updated Versions for 0.2.2

Merge pull request #487 from jbouffard/pre-0.2.1/versions

Updates for v0.2.1

Merge pull request #473 from jbouffard/release-0.2.0

Updated Versions for GeoPySpark 0.2.0

Merge pull request #438 from jbouffard/0.2.0/rc5

Updated Versions to RC-5