Reverted the artifact name hack of netbeans-gradle-default-models: Using nbm-maven-plugin 3.9.
Added "distributionManagement" to pom.
Set version to 1.2.8.1.
Updated the URL to which netbeans-gradle-default-models is published to.
Set version to 1.2.8.2-SNAPSHOT.
Merge branch 'master' into extension_api2