Merge remote-tracking branch 'upstream/master' into HEAD

Change-Id: I04ae80c5f0d2e616b2a5771d8e6f6dda30abc90d
diff --git a/README.fuchsia b/README.fuchsia
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+Name: netstack
+Upstream git: https://github.com/google/netstack
+Description:
+
+Netstack is an IPv4 and IPv6 network stack written in Go.
+