Enable wildcards in URI to match incoming request 

wildcard is %, so URIs with URI-encoded characters must be escaped using %%.
e.g. `/press/%/some%%20article` matches requests `/press/new/some%20article` and `/press/archived/some%20article`. Existing URIs with URI-encoded characters from the old scheme will still work as they are, but will also match weird URLs like `some_other20_article`. Suggest to update old URIs or add a toggle in the admin to allow wildcards, off by default.