Add wyBuild to PATH

To take a more automated approach to publishing updates, we use wyBuild.cmd.exe. However, part of this process requires resolving the path to wyBuild. (The path is different between 32-bit and 64-bit PCs.)

I think this could be resolved by: in wyBuild installation, add a boolean option "Add wyBuild to PATH".wyBuild directory would then be added to PATH, allowing easier invocation of wyBuild.cmd.exe.

Sure we could do that. In the meantime you can just read the "default value" from the registry node "SOFTWARE\wyUpdate\Setup". That will contain the path to the wyBuild install folder.