Change "filename" and "folder" keys for helpers

[macMikey]

The current behavior is confusing. For helpers, "filename" is a path the to the folder containing the files for a helper, and "folder" is a path pointing to a folder that contains the folders that contain helpers.
Change "filename" to "folder", and "folder" to "folder of folders" or something else that is more meaningful to n00bs (and me)

[trevordevore]

The general rule in the app.yml file is that if you are pointing to a single object then use filename and if you are pointing to a folder of objects use folder. I think of a helper as being similar to an app bundle or framework on macOS. It should be thought of as a single object that happens to be made up of many files behind the scenes. Maybe it can be thought of as being a package.

I don't think that changing filename to folder for helpers is the right approach because in all of the other sections folder is used because it is a folder of behaviors, libraries, etc. I would consider using package filename as for helpers though. That seems more descriptive.

[macMikey]

something more descriptive would be less confusing. filename implies something completely different from folder. Perhaps the way to address it is to allow either folder (if it actually points to a folder) or filename in the context of filename. The current behavior is going to bite people.

[trevordevore]

I do not want to use folder to point to an individual helper as it is already used in another context. That would be confusing as well. What if path was a synonym for filename and is what we used in the docs? A path can be either a filename or folder so it would be appropriate.

[macMikey]

I'm cool with path. I would leave filename in place, and just add path.