Update versions, notes, and tools.

Update version info.

Update version info.

Update version info.

Update mpu.exe

Fix mpu.exe path problem. Issue msgpack#125.

Because csproj file use back slashes instead of forward slashes to represent file path, copying non-Windows environment always fails. This commit normalize the file path with Path.DirectorySeparatorChar.

Update versions.

Update files.

Update mpu.exe binaries.

Update files related to release.