[ Issaquah 2014-10-12: Move to NAD ]

We discussed leaving the s UDL suffix for string_view in Portland, and voted strongly in favor of using it for std::string. string is also an extremely widely used type, and the difference is observable in type deduction cases. In addition, a compile-time string is likely to cost significant compile time, which we don't want to make the default with s.

The current draft uses the "s" UDL suffix as a UDL for basic_string<charT> ([basic.string.literals]). In light of EWG active issue 66 (concerning N3599), the "s" suffix (when applied to character string literals) should be reserved for a compile-time string library type.