Comment 2 for bug 1780217

When the parser was created the gadget.yaml specification did not include the connections: stanza - we'll add that now. mvo had a good idea about adding a flag for ignoring unknown fields in the gadget.yaml - I'll fill in a separate bug for that and add it. Since otherwise, in cases where the gadget.yaml file will get a new field that'll start being in use, users will be blocked until the new u-i release.