[MNG-4368] DefaultArtifactInstaller should only overwrite files if timestamp has changed

o Revised to install upon any difference in file timestamp or length

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-2/branches/maven-2.2.x@894355 13f79535-47bb-0310-9956-ffa450edef68
1 file changed