src: rename node to io.js for Windows installer
- rename various files
- quote "NODE_VERSION_STRING" in node.rc to allow for complex version strings
- rename and reword config for wix installer config
A special nightly of this can be found @ https://iojs.org/download/nightly/v1.0.0-nightly201501111b8f37bb4d/ with the .msi and 64-bit executable in the win-x64 directory.
Installer background image files are not included, I'm adding them in as a special build step for now, we'll figure out what to do about them later because of the "each version gets a new logo" thing we're apparently doing. I haven't changed the .ico file yet, just renamed for now.
Please review and test .msi installer @piscisaureus @seishun and other Windows users. I'd like to get this initial pass landed asap and we can iterate from there.