handling read errors at all and error handling for writes was
never being used. Now the socket disconnects if a read or write
fails on the socket for any reason except EINTR. Also added
<netinet/in.h> to includes in CNetwork.h because it's needed on
some platforms.
synergy.cpp and server.cpp into cmd/synergyd as synergyd.cpp.
Moved and renamed related files. Moved remaining source files
into lib/.... Modified and added makefiles as appropriate.
Result is that library files are under lib with each library
in its own directory and program files are under cmd with each
command in its own directory.
