+Add __clone handlers for all object types? Is it really needed?
+Let's assume we are cloning a loop having a set of active watchers. Some of them
+may finish before __clone handler did it's job. Because of such kind of issues
+(and many others) we probably don't need __clone handler for EvLoop.
+However, sometimes clone handler may be useful to copy entire watcher with it's
+settings and bind to another event loop.
+Will wait for user requests, or bug reports.
libevent buffer functionality?
+But should it be in ev extension?! Sockets' buffering should be somewhere in
+sockets extension, isn't it? libevent functionality should be in libevent
+itself. libevent extension currently doesn't support libevent 2. Consider
+forking the project, or even writing something new.