message: added skip property for frontend maven plugin
diff: <version>2.0.5-SNAPSHOT</version>
  </parent>
  + <properties>
  + <frontend-maven-plugin.skip>false</frontend-maven-plugin.skip>
  + </properties>
  +
  <build>
  <plugins>
  <plugin>
  <configuration>
  <workingDirectory>./</workingDirectory>
  + <skip>${frontend-maven-plugin.skip}</skip>
  </configuration>
  <executions>
  