Investigate need for compliance with IETF PRECIS framework

According to Phil Hunt's blog entry, <[https://blogs.oracle.com/fusionmiddleware/entry/standards_corner_ietf_revisits_http](https://blogs.oracle.com/fusionmiddleware/entry/standards_corner_ietf_revisits_http)> there are a number of improvements in the recent HTTP 1.1 JSRs that should be investigated for their impact on Servlet.

This one involves how Unicode strings are processed before being passed to the consumers of the Servlet API.

See <[http://tools.ietf.org/html/draft-ietf-precis-framework](http://tools.ietf.org/html/draft-ietf-precis-framework)> for more information.