Make FileCopier binary safe

For best performance, install docker and the rancher CLI on the Rundeck server. However, this implementation will also work without those tools by uploading base64 encoded chunks of the file and recombining them with the base64 utility. This approach also avoids sending large files to the API that exceed the POST size limit.

Node Executor timeout

Provides a configurable timeout for Node Executor.

Initial Public Release

This is a java-based plug-in to access Rancher-controlled Docker containers as nodes in Rundeck.

It currently provides the Resource Model, a Node Executor, and a File Copier.