PION-1310: handle comma-separated values lists in query string params
STREAM-329: updates to make tcp::connection::cancel() work on windows
PION-1306: merged boost's xml_log_formatter into safe_xml_log_formatter
so that it compile on windows
PION-1306: Removing PION_API to fix windows compile
STREAM-329: disabling tcp::connection::cancel() on windows
STREAM-432: patch tcp::connection::close() for windows
Bumping version number to 5.0.1
More 5.0.1 version updates
Merge remote-tracking branch 'upstream/develop' into develop