go1.6

Change-Id: I5744bffe2af1706d9ac61d943aef18ce611cb623
Reviewed-on: https://go-review.googlesource.com/19580
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

VERSION

-go1.6rc2
+go1.6
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