misc/chrome/gophertool: Support for manifest version 1 is being phased out.
misc/chrome/gophertool: Support for manifest version 1 is being phased out.

Manifest version 1 was deprecated in Chrome 18, and support will be phased
out according to the schedule available at:
http://code.google.com/chrome/extensions/manifestVersion.html

R=golang-dev, rsc
CC=golang-dev
http://codereview.appspot.com/6332053

Committer: Russ Cox <5ad239cb8a44f659eaaee0aa1ea5b94947abe557@golang.org>

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