This speeds up private key operations by 3.5x (for a 2048-bit
modulus).

R=golang-dev, r, rsc1
CC=golang-dev
https://golang.org/cl/4348053

R=golang-dev, agl1
CC=golang-dev
https://golang.org/cl/4316057

R=agl1
CC=golang-dev
https://golang.org/cl/4346054

R=rsc
CC=golang-dev
https://golang.org/cl/4339055

R=golang-dev, rsc1, r2, bradfitzgo, gri
CC=golang-dev
https://golang.org/cl/4344068

If the command couldn't be found, argv[0] would be wiped.
Also, fix a print statement not to refer to make - it was a vestige of a prior form.

R=rsc, gri
CC=golang-dev
https://golang.org/cl/4360048

R=rsc
CC=golang-dev
https://golang.org/cl/4315050

R=rsc
CC=golang-dev
https://golang.org/cl/4315051

R=rsc, r
CC=golang-dev
https://golang.org/cl/4339054

Fixes #1665.

R=gri
CC=golang-dev
https://golang.org/cl/4351051

R=r, rog
CC=golang-dev
https://golang.org/cl/4364041

Original code by Chris Lennert <cale...@gmail.com>

R=rsc, agl1
CC=golang-dev
https://golang.org/cl/4331054

R=brainman
CC=golang-dev
https://golang.org/cl/4308047

We replace the current Open with:
OpenFile(name, flag, perm) // same as old Open
Open(name) // same as old Open(name, O_RDONLY, 0)
Create(name) // same as old Open(name, O_RDWR|O_TRUNC|O_CREAT, 0666)

This CL includes a gofix module and full code updates: all.bash passes.
(There may be a few comments I missed.)

The interesting packages are:
        gofix
        os
Everything else is automatically generated except for hand tweaks to:
        src/pkg/io/ioutil/ioutil.go
        src/pkg/io/ioutil/tempfile.go
        src/pkg/crypto/tls/generate_cert.go
        src/cmd/goyacc/goyacc.go
        src/cmd/goyacc/units.y

R=golang-dev, bradfitzwork, rsc, r2
CC=golang-dev
https://golang.org/cl/4357052

R=rsc
CC=golang-dev
https://golang.org/cl/4355052

R=rsc
CC=golang-dev
https://golang.org/cl/4363043

Amazon S3 sends Transfer-Encoding "chunked"
on its 404 responses to HEAD requests for
missing objects.

We weren't ignoring the Transfer-Encoding
and were thus interpretting the subsequent
response headers as a chunk header from the
previous responses body (but a HEAD response
can't have a body)

R=rsc, adg
CC=golang-dev
https://golang.org/cl/4346050

A connection shouldn't be made available
for re-use until its body has been consumed.

(except in the case of pipelining, which isn't
implemented yet)

This CL fixes some issues seen with heavy load
against Amazon S3.

Subtle implementation detail: to prevent a race
with the client requesting a new connection
before previous one is returned, we actually
have to call putIdleConnection _before_ we
return from the final Read/Close call on the
http.Response.Body.

R=rsc, adg
CC=golang-dev
https://golang.org/cl/4351048

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4315049

R=golang-dev, rsc1, peterGo, bsiegert, r, mattn
CC=golang-dev
https://golang.org/cl/4271057

The transport readLoop was waiting forever for the client to
read the non-existent body before proceeding to read the next
request.

R=rsc
CC=golang-dev
https://golang.org/cl/4357051

R=r, r2, rsc1, rsc, jacek.masiulaniec
CC=golang-dev
https://golang.org/cl/4344062

TBR=r
CC=golang-dev
https://golang.org/cl/4351047

The error will only occur for invalid patterns, but without this
error path there is no way to know that Glob has failed due to
an invalid pattern.

R=rsc
CC=golang-dev
https://golang.org/cl/4346044

Write never writes less than the buffer size and WriteString takes advantage
of the copy built-in to improve write efficiency.

R=rsc, ality, rog
CC=golang-dev
https://golang.org/cl/4344060

According to RFC 3986: "For consistency, URI producers
and normalizers should use uppercase hexadecimal digits
for all percent-encodings."  Using lower case characters
makes it incompatible with Google APIs when signing OAuth requests.

R=golang-dev, rsc1, rsc
CC=golang-dev
https://golang.org/cl/4352044

R=golang-dev, r2
CC=golang-dev, mrjones
https://golang.org/cl/4348048

R=r
CC=golang-dev
https://golang.org/cl/4353047

Fixes #1637.

R=rsc, rh, msolo
CC=golang-dev
https://golang.org/cl/4317049

R=rsc
CC=golang-dev
https://golang.org/cl/4331050

Enables the use of https servers in tests.

R=agl, rsc, agl1
CC=golang-dev
https://golang.org/cl/4284063

Ideally we'd compile all example files during
the build, though.

Fixes #1660

R=r
CC=golang-dev
https://golang.org/cl/4358049

Fixes #1651.

R=rsc
CC=golang-dev
https://golang.org/cl/4300054

R=paulzhol, ality, r, fhs
CC=golang-dev
https://golang.org/cl/4316054

these were needed by packages in crypto/ and by io/ioutil

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4350047

R=r, peterGo
CC=golang-dev
https://golang.org/cl/4344053

R=rsc, ality, r, r2
CC=golang-dev
https://golang.org/cl/4149046

CC=golang-dev
https://golang.org/cl/3816043

R=r, r2, rsc1
CC=golang-dev
https://golang.org/cl/4343045

Forgot this one in the previous CL

R=rsc, r
CC=golang-dev
https://golang.org/cl/4345043