CHANGES: fix Docutils warnings: Inline emphasis start-string without end-string.

Fix typo.

This avoids the issue with overloaded address-of operators.

Conflicts:
	CHANGES.rst

seems like the explicit deepcopy helpers in the control flow state objects are no longer needed but crash the compiler due to infinite recursion

base buffer handling conditions during code generation only on used buffer entries to avoid overhead if all of them are unused

unique_ptr & shared_ptr: Added missing bool operator!()

seems like the explicit deepcopy helpers in the control flow state objects are no longer needed but crash the compiler due to infinite recursion

fix crash where Coroutine deallocation could execute Python code to print a warning which could trigger GC and hit the dead Coroutine object

hopefully fix crash where Coroutine deallocation could execute Python code to print a warning which could trigger GC and hit the dead Coroutine object