Fixed checkstyle issues

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1641677 13f79535-47bb-0310-9956-ffa450edef68
Updated to p-archiver 2.8.4

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1641697 13f79535-47bb-0310-9956-ffa450edef68
[MPMD-170] Have targetJdk default to maven.compiler.target

Contributed by: Stevo Slavic

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1641834 13f79535-47bb-0310-9956-ffa450edef68
[MRRESOURCES-88] Added a note about .vm on the usage page

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1641900 13f79535-47bb-0310-9956-ffa450edef68
[MDEPLOY-192] Upgrade maven-plugin-testing-harness to 1.3

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1641951 13f79535-47bb-0310-9956-ffa450edef68