Upgrading server dependancies (#6984)

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diff --git a/vendor/github.com/minio/go-homedir/README.md b/vendor/github.com/minio/go-homedir/README.md
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+# go-homedir
+
+This is a Go library for detecting the user's home directory without
+the use of cgo, so the library can be used in cross-compilation environments.
+
+Usage is incredibly simple, just call `homedir.Dir()` to get the home directory
+for a user, and `homedir.Expand()` to expand the `~` in a path to the home
+directory.
+
+**Why not just use `os/user`?** The built-in `os/user` package is not
+available on certain architectures such as i386 or PNaCl. Additionally
+it has a cgo dependency on Darwin systems. This means that any Go code
+that uses that package cannot cross compile. But 99% of the time the
+use for `os/user` is just to retrieve the home directory, which we can
+do for the current user without cgo. This library does that, enabling
+cross-compilation.