This CL basically applies the same changes as

	http://code.google.com/p/go/source/detail?r=5e0a29014e8e

but for bytes package.

R=r, rog
CC=golang-dev
https://golang.org/cl/1670052

R=rsc, adg
CC=golang-dev
https://golang.org/cl/1864042

undo workaround in gc

Fixes #943.

R=kaib
CC=golang-dev
https://golang.org/cl/1889041

bug introduced in https://golang.org/cl/1886043

R=r
CC=golang-dev
https://golang.org/cl/1848047

R=kaib
CC=golang-dev
https://golang.org/cl/1847043

R=rsc
CC=golang-dev
https://golang.org/cl/1843046

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/1847042

Fixes #937.
Fixes #938.
Fixes #939.
Fixes #940.

R=r
CC=golang-dev
https://golang.org/cl/1886043

R=adg, rsc
CC=golang-dev
https://golang.org/cl/1886042

Goroutine 1:
  Call Read on read half of pipe, entering pipeHalf.rw.
  Check ioclosed field, which is false.
  Send data to p.c1
  Wait for response on p.c2.

Goroutine 2:
  Call Close on read half of pipe, entering pipeHalf.close.
  Set closed field.
  Send error to p.cclose.
  Set ioclosed field.
  Send 1 to p.done.
  Return and exit goroutine.

Goroutine 3:
  This is the goroutine running pipe.run, and for some reason
  it has started late.
  Read error from p.rclose; set rerr and continue.
  Read 1 from p.done; increment ndone and continue.
  Read data from r1 (sent by goroutine 1); set r1 = nil and continue

Now goroutine 1 is waiting for a response, and goroutine 3 is
waiting for something else to happen.

This patch fixes the race by having the runner check whether
the read half is closed when it is asked for read data, and
similarly for the corresponding race on the write half.

This patch also fixes the similar race in which ndone gets
bumped up to 2 while there is a reader or writer waiting.

There is still another race to fix.  It is possible for the
read half and the write half to both be closed, and for the
runner goroutine to exit, all before the runner goroutine sees
the request from a reader.  E.g., in the above, have goroutine
2 also close the write half, and have goroutine 3 see both
done messages before it sees the request from goroutine 1.

R=rsc
CC=golang-dev
https://golang.org/cl/1862045

For the Windows version of syscall Errstr, set the
FORMAT_MESSAGE_IGNORE_INSERTS value of the FormatMessage
Flags argument when there are no values to insert.

R=rsc, brainman
CC=golang-dev
https://golang.org/cl/1868043

SNI (Server Name Indication) is a way for a TLS client to
indicate to the server which name it knows the server by. This
allows the server to have several names and return the correct
certificate for each (virtual hosting).

PeerCertificates returns the list of certificates presented by
server.

R=r
CC=golang-dev
https://golang.org/cl/1741053

        OCSP is the preferred X.509 revocation mechanism. X.509 certificates
        can contain a URL from which can be fetched a signed response saying
        "this certificate is valid until $x" (where $x is usually 7 days in the
        future). These are called OCSP responses and they can also be included
        in the TLS handshake itself ("OCSP stapling")

R=rsc, r
CC=golang-dev
https://golang.org/cl/1875043

R=rsc
CC=golang-dev
https://golang.org/cl/1888041

R=rsc
CC=golang-dev
https://golang.org/cl/1866044

R=rsc
CC=golang-dev
https://golang.org/cl/1697053

R=rsc
CC=golang-dev
https://golang.org/cl/1870042

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/1848045

Fixes #935.
Fixes #936.
Fixes #941.

R=ken2
CC=golang-dev
https://golang.org/cl/1867042

R=rsc
CC=golang-dev
https://golang.org/cl/1872042

Fixes #934.

R=rsc
CC=golang-dev
https://golang.org/cl/1869043

- don't lose empty lines after labels
- canonicalize number of line breaks
- gofmt src misc, fixes a couple of irregular breaks

R=rsc
CC=golang-dev
https://golang.org/cl/1843044

R=rsc
CC=golang-dev
https://golang.org/cl/1742048

but with less precision than hardware counterparts.

fixed a number of tests to output BUG when they failed.
changed the runner to distinghuish between output
and output containing ^BUG

R=rsc
CC=dho, golang-dev
https://golang.org/cl/1778041

R=iant, r
CC=gofrontend-dev, golang-dev, joel.sherrill
https://golang.org/cl/1846047

strings.ToTitle converts all characters to title case, which for consistency with the
other To* functions it should continue to do.  This CL adds string.Title, which
does a proper title-casing of the string.
A similar function for package bytes will follow once this is settled.
Fixes #933.

R=rsc
CC=golang-dev
https://golang.org/cl/1869042

from word-oriented to bit-oriented.
this will increase fp literal precision
by up to a full word.

R=rsc
CC=golang-dev
https://golang.org/cl/1859044

R=r
CC=golang-dev
https://golang.org/cl/1857043

        Add support for ASN.1 ENUMERATED types.

        Add a magic type, asn1.Flag, for the cases where the presence of an
        empty explicit tag is semantically meaningful.

        Add support for GeneralizedTime.

R=rsc
CC=golang-dev
https://golang.org/cl/1684055

R=r
CC=golang-dev
https://golang.org/cl/1830041

R=dho
CC=golang-dev
https://golang.org/cl/1777041

R=PeterGo, adg
CC=golang-dev, jnw
https://golang.org/cl/1699046

Fixes #923.

R=adg, rsc
CC=golang-dev
https://golang.org/cl/1846043

Fixes #465.

R=iant
CC=golang-dev
https://golang.org/cl/1665051

(on Windows, syscall depends on utf16)

R=rsc
CC=golang-dev
https://golang.org/cl/1664053

out of floating constant multiply
2. added rounding code to "const fix=float"
to allow up to 29 (Mpscale) bits of
slop and still get an exact fixed constant.

fixes #931

R=rsc
CC=golang-dev
https://golang.org/cl/1692055

R=ken2
CC=golang-dev
https://golang.org/cl/1872041

R=r
CC=golang-dev
https://golang.org/cl/1841044

Fixes #925.
Fixes #926.
Fixes #927.
Fixes #928.
Fixes #929.
Fixes #930.

R=r
CC=golang-dev
https://golang.org/cl/1752044

R=rsc
CC=golang-dev
https://golang.org/cl/1862044