This change was done to avoid confusion with TCP/IP raw sockets. Native sockets
module represents handling native system low level socket API in general and is
not just limited anyhow to TCP/IP raw sockets.
A stub lib/deprecated/pure/rawsockets.nim module has been added as
compatibility layer for old code using rawsockets, so this change will not
break existing code.
A faulty proc declaration is generated:
N_NIMCALL(System::Input*, SystemManager::getSubsystem<'*0>())(void);
The manual has been edited to add a nodecl pragma, which alleviates the issue
Fix a typo in the vector_iterator example from the previous commit.
