* Attempt to keep Kotlin totally off the classpath
* Add version header for new class
* Fix a few bugs with the samples and provide better debugging output for javaexec
* Use main consistently
* Fix Gradle's published pom and use maven-publish plugin consistently throughout plugin and samples
* Re-add groovydoc jar
* Have assemble create the groovydoc jar
* Switch to publishToMavenLocal
* Sync dependencies with pom.xml and fix null provider for Gradle versions less than 6.2
* Perform quoting conditionally for Windows only
* Add jsch, aether, and shaded libraries to round out compatibility
* Ensure contract tests are generated before kotlin compile task
