Some types support being swapped but may not have declared their
std::swap overloads when Poco/Optional.h is first included. This is the
case for instance with
#include <Poco/Optional.h>
#include <array>
using Problematic = Poco::Optional<std::array<int, 42> >;
With an unqualified call to swap, preceded by using std::swap, we allow
argument-dependent lookup to find suitable implementations of swap.
* As of C++11, std::swap is noexcept. #2386
* fix(Any): remove throw on swap
* fix(Any): As of C++11, std::swap is noexcept. #2386
* fix(Any): make size const #2386
* fix(SimpleRowFormatter): clang won't compile noexcept #2386
* a couple of arm fixes
* fix(Any): As of C++11, std::swap is noexcept. #2386
* fix(AnyTest): local() for POCO_NO_SOO# 2386
* test(RSACipher): RSA encryption without private key #2367
* chore(RSACipherTest): delete ciphers #2367
