fs.move across windows drives fails

[nicks]

var x = 'C:\\test.txt'
var y = 'D:\\test.txt'
require('fs-extra').move(x, y, function (err) {
  throw err
})

emits the following error:

Can't move source into dest if dest is in source.

I believe the detection here is incorrect, and should probably use some other mechanism

[jprichardson]

hah, ok, I'm on it.

[jprichardson]

Published 0.16.3.