…400)

* Update feast core default values to include hibernate merge strategy

* Add default value for job polling timeout

* Use Nexus staging pluging for deployment

* Fix Javadoc error

* Hard coded parent version as variable substitution is not supported

* Filter out duplicate fields, ignore extra fields

* Add test for filtering out extra fields

* Add documentation building for Core and Serving gRPC APIs

* Remove staticly generated Python documentation

* Deduplicate rows in subquery

* Rename columns

* Use correct feature names

* Select k.* instead of iterating through fields

* Use back revision variable in pom.xml
So user or CI system can easily override revision from external sources such as Git tag name

* Add flatten maven plugin
This plugin is useful during deployment so the final pom is resolved without parent dependency, i.e. we do not necessarily need to upload parent library

* Increase versions for maven source,javadoc,spotless plugins
So it has newer features and more fixes

* Add gpg-plugin needed to sign releases

* Use oss configure for flatten plugin, add developers info in pom.xml (required for releasing library

* Add publish-java-sdk script

* Add more logs to publish-java-sdk.sh

* Add ProwJob publish-java-sdk

* Use GPG_KEY_IMPORT_DIR variable

* Update revision in pom.xml to 0.4.2-SNAPSHOT