Removing call to image_id_matches in load_current_resource

[jschneiderhan]

Taking the call to image_id_matches? in the image LWRP's load_current_resource method solves the problem that I was having in #153. I'm not positive, but it looks like new_resource.id is always nil at the time that load_current_resource is called.

[bflad]

I've merged in #157 which may resolve this issue and am going to preemptively close #139, #153, and #154 even though they may not be fully resolved yet. I'd prefer if someone created separate new single issues to track if you are:

• no longer able matching images/containers in your use cases
• still having issues with nil for existing containers

Thanks so much for your cooperation and patience.