deferred deallocation of local objects

[Derek Zhou]

Hi,
In NSConnection.m -removeLocalObject:, all local objects are unconditionally 
deferred for deallocation by 30 seconds. According to the comments there, it 
is to avoid oops when the remote end vend the object onwards. Why is this 
nessesary? It looks rather ugly to me. 30 seconds is a pretty long time; if 
one keeps pushing objects to the far end it can consume huge amount of memory 
or even get out-of-memory condition. If we do not have elegant solution at 
least we should make it per-application overridable by using defaults. 
Derek