Fix minetest.rotate_and_place() calling on_rightclick() with nil/random param for node
Fix curl dll not getting installed when sound is disabled
Connection: Stop processing malformed packet when encountered
Add pointed_thing to minetest.register_on_placenode

As suggested by qwrwed.
Include system info in the HTTP user agent on Windows
Pass pointed_thing to on_punch and minetest.register_on_punchnode callbacks
Fix error on mod download failure