In the C# API, methods have been renamed, changed to properties, or made to
return interfaces instead of classes. Some parameters have different defaults.
Very little of the implementation has changed.
Lua API hasn't changed at all, but Comm/Input/SaveState libs are now in
Client.Common (and Comm now delegates to IComm).
MemApi.ReadByteRange now returns the requested number of bytes and not 1 extra,
MemApi.ReadByteRange now warns only once per call for addrs outside range,
MemApi.ReadByteRange now warns for negative addrs (once per call; previous
implementation passed negative addresses to PeekByte), MemApi.WriteByteRange now
warns only once per call for addrs outside range, MemApi.WriteByteRange now
warns for negative addrs (once per call; previous implementation passed negative
addresses to PokeByte)