Put the test main function in a seperate file.
Refactor all files
	deleted:    Makefile
	modified:   libevent/Makefile
	modified:   libevent/eventserver.cpp
	new file:   memcpy/Makefile
	renamed:    memcpyserver.cpp -> memcpy/memcpyserver.cpp
	new file:   select/Makefile
	new file:   select/selectserver.cpp
	deleted:    selectserver.cpp