bugfix: bad local_file path on installation

My previous request pull created a installation bug where the #{node['newrelic']['java-agent']['install_dir']}/newrelic.jar wasn't being created with the same value produced by the newrelic's installation agent. eg: ```NR_JAR=/opt/tomcat-7.0.53/newrelic/newrelic.jar; export NR_JAR````

bug was fixed using the path attribute of the remote_file chef provider (renaming the downloaded file to the correct name)