code: private String getProjectVersion() {
          return Utils.convertToDebianVersion(getProject().getVersion(), this.snapshotExpand, this.snapshotEnv, this.snapshotTemplate, session.getStartTime());
      }
docs: Doc some cleanup and conversion on the Maven project version.
  <ul>
  <li>any "-" is replaced by "+"</li>
  <li>"SNAPSHOT" is replaced with the current time and date, prepended by "~"</li>
  </ul>
  
  @return the Maven project version