The "path" field in the manifest has been renamed to "repopath", but the manifest parser was not updated, rendering it incapable of reading manifests generated by a recent version of pkg.  Add an entry for "repopath" to the manifest_key list so we can parse both old and new manifests.
Fix an apparently harmless typo in pkg_keys.
Merge pull request #849 from dag-erling/repopath

Fix manifest parsing.