Install skips the install based on a flag in the install directory

This PR may be a bit premature, but wanted to submit it to get some early feedback.  This implementation uses a simple flag in the installed directory to skip a subsequent install on the next run.  This only applies to the .tar.gz resource but could be applied to others.  I am not sure if the flag belongs in the install directory itself or some other location in the file system.  

Let me know what you think about this approach and if it should be applied to other resources.