Validate Method headers property.
Remove Protocol class, validate method protocols property.
Misc.
Add Method queryParameters validation.
Validate Method's body property.
Validate Body media type.
Swap the web form exceptions.
Add web form Body formParameters validation.
Add Body schema property validation.
Misc.
Validate Method responses property.
Fix some specs.
Validate Response body property.
Misc.
Validate Response description property.
Validate Response headers property.
Verify that the attribute examples make it to the documentation.