Build #71

Parameters
 RELEASE_VERSION
Version to release. Default value is from POM snapshot.
 NEXT_VERSION
Next snapshot version to set (e.g. 1.2-SNAPSHOT). Default value is from POM snapshot with last component incremented by 1.
 BRANCH
Branch to release. Default value is master.
 OVERWRITE
Allows to overwrite existing version in git and nexus staging repositories.
 DRY_RUN
-DdryRun=true is passed to maven when checked.