skip the manifest check for artifact_deploy to prevent an unnecessary
redeploy and restart of nexus during every chef run when the nexus
version has not changed.
use symlinks to keep the nexus tmp directory out of consideration when
artifact_deploy is comparing manifests
Merge pull request #89 from andrewgoktepe/no-unnecessary-redeploy

Prevent nexus from being redeployed and restarted during every chef run when version has not changed