Wrong header returned by authenticate() #19
Description
The authenticate method is returning:
('WWW-Authenticate', 'Bearer realm="eve_auth_jwt", error="invalid_token"'): ('Content-Type', 'text/html; charset=utf-8')instead of
WWW-Authenticate: Bearer realm="eve_auth_jwt", error="invalid_token"which, apart of being an invalid header, makes gunicorn fail with HTTP error code 400, and the message "Invalid HTTP header name".