Add metadata summary per FM-1523

fix a very minor typo

Because the Forge likes having it, and docks us quality points for not.

Add os support information to metadata.json

Don't use smart quotes

This adds validations to ensure that:

1. The value of `resource` is either a valid resource reference or a
string that can be converted to a valid resource reference.
2. The resource specified in `resource` exists in the catalog.
3. The value of `attributes` is a hash.
4. All the specified attributes are valid parameters for the specified
resource.
5. The values of `prior_to` are valid resource references or strings
that can be converted to valid resource references.
6. All resources specified in `prior_to` exist in the catalog.

Additionally, it adds munging to resolve the values of `resource` and
`prior_to` into their catalog representations and removes the
now-redundant resource resolution from the provider.

Add validation to transition type

A transition resource does the equivalent of an out-of-band
`puppet resource ...` operation. This means that the catalog will end up
containg a resource with a stale state if pre-fetching was triggered before
the transition. An example of this is a package resource in the catalot that
the agent thinks is present, because it was when pre-fetch happened, but is
actually absent because of a Transition. This patch clears cached state from
the catalog resource so that it will be re-fetched when the resource
is evaluated.

…e-state

Clear cached provider properties after transition

(MODULES-4734) release 0.1.1 prep