use maven-scm-publish-plugin 1.0
Add error label to a shell script before exiting.
fixed errors reported by Checkstyle
restore public interface
[MNG-5574] Write error/warning messages from mvn shell and batch scripts
to stderr
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/maven
[MNG-5572] Warn for building plugins with extensions in a reactor