stem blocks are now known as stable blocks

stem = stable = core
PostProcessing/global blocks: include everything

Global blocks must cover whole sequences, no "rest"
(add assert against "rest" of global blocks).
fix MapAny for AnyAs types, add test

Types int, bool, string, Decimal, Strings
as part of MapAny were skipped from conversion to/from Lua.
fix cmake check LUABIND_INT64_MISSING

Type int64_t requires stdint.h
fix compilation of thread_pool on MinGW-w64

Asio headers must be included before boost.thread
headers (problems with headers of Winsock and Winsock2).