Allow u-* properties to be invalid URIs
Do not log URI::InvalidURIError error message
Add specs for Microformats2::AbsoluteUri
Convert a spec to an explicit subject and lets.
Merge pull request #28 from G5/let-it-be

Convert a spec to an explicit subject and lets.
Merge pull request #27 from G5/allow-invalid-uri-as-u-properties

Allow u-* properties to be invalid URIs