Line up the console log comments

Just to avoid confusion: it was throwing `TypeError: Cannot read property 'status' of null`

Add cli access via minimist which takes argument flags and passes them
in as the config object.

src option does not take an object, so readme file has been updated to reflect this

src option does not allow multiple images because to do so RFG would have to do it and it doesn't.

This will probably improve once the RFG branch is merged.