Clean up flow of control.

Handle </tbody>, </tfoot>, and </thead>.

Pass 5 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6117057

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6127050

R=adg
CC=golang-dev
https://golang.org/cl/6127048

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6114053

Fixes #3538

R=golang-dev, adg, rsc
CC=golang-dev
https://golang.org/cl/6117058

Fixes #3562

R=golang-dev, adg, rsc
CC=golang-dev
https://golang.org/cl/6119051

Switch from using the rfork() syscall on OpenBSD, to the __tfork()
syscall.  The __tfork() syscall is the preferred way of creating
system threads and the rfork() syscall has recently been removed.

Note: this will break compatibility with OpenBSD releases prior to 5.1.

R=golang-dev, bradfitz, devon.odell, rsc
CC=golang-dev
https://golang.org/cl/6037048

collation table. At this moment, it only implements the generation of
a root table.

R=r
CC=golang-dev
https://golang.org/cl/6039047

context for change lists of lower-level types. The public APIs are defined
in builder.go and collate.go. Type table is the glue between the lower and
higher level code and might be a good starting point for understanding the
collation code.

R=r, r
CC=golang-dev
https://golang.org/cl/5999053

The trie code looks a lot like the trie in exp/norm. It uses different
types, however.  Also, there is only a lookup for []byte and the unsafe
lookup methods have been dropped, as well as sparse mode.
There is now a method for generating a trie. To output Go code, one now needs
to first generate a trie and then call print() on it.

R=r, r, mpvl
CC=golang-dev
https://golang.org/cl/5966064

(see http://www.unicode.org/reports/tr10/).

R=r, r
CC=golang-dev
https://golang.org/cl/5981048

(See http://www.unicode.org/reports/tr10/#Contractions.)  Each rune that is at the
start of any contraction is associated a trie. This trie, in turn, may be shared
by other runes that have the same set of suffixes.

R=r, r
CC=golang-dev
https://golang.org/cl/5970066

Revert the following change set:

        changeset:   13018:97d027b3aa68
        user:        Gustavo Niemeyer <gustavo@niemeyer.net>
        date:        Mon Apr 23 22:00:16 2012 -0300
        summary:     net/http: allow clients to disable keep-alive

This broke a test on Windows 64 and somebody else
will have to check.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6112054

On Solaris versions before Solaris 11, the kernel will not
return more than 1040 on a single read from /dev/urandom.

R=golang-dev, agl, bradfitz, rsc, iant, dchest
CC=golang-dev
https://golang.org/cl/6113046

everything except backslash and the quote chars is fair game.

Fixes #3546.

R=rsc, r
CC=golang-dev
https://golang.org/cl/6048047

Fixes #3584.

R=dave, dsymonds, rsc
CC=golang-dev
https://golang.org/cl/6119043

benchmark                        old ns/op    new ns/op    delta
BenchmarkIndexByte32                   459          126  -72.55%
BenchmarkIndexByte4K                 52404        10939  -79.13%
BenchmarkIndexByte4M              54470800     11177370  -79.48%
BenchmarkIndexByte64M           1010803000    178860500  -82.31%

benchmark                         old MB/s     new MB/s  speedup
BenchmarkIndexByte32                 69.58       252.63    3.63x
BenchmarkIndexByte4K                 78.16       374.42    4.79x
BenchmarkIndexByte4M                 77.00       375.25    4.87x
BenchmarkIndexByte64M                66.39       375.20    5.65x

R=rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6106044

As in:
        const format = "%s"
        fmt.Printf(format, "hi")
Also fix a couple of bugs by rewriting the routine.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6099057

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6125044

Don't foster-parent text nodes that consist only of whitespace.
(I implemented this entirely in inTableIM instead of creating an
inTableTextIM, because the sole purpose of inTableTextIM seems to be
to combine character tokens into a string, which our tokenizer does
already.)

Use parseImpliedToken to clarify a couple of cases.

Handle <style>, <script>, <input>, and <form>.

Ignore doctype tokens.

Pass 20 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6117048

Gccgo used to get this wrong.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6121044

Replaces the default OS X installer background
with a more fitting image.

R=golang-dev
CC=golang-dev
https://golang.org/cl/6116043

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6100053

R=golang-dev, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/5919054

This CL corrects the remaining differences that I could find between the
implementation of inBodyIM and the spec:

Handle <rp> and <rt>.

Adjust SVG and MathML attributes.

Reconstruct active formatting elements in the "any other start tag" case.

Pass 7 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6101055

If a part ends with "--boundary--", without a final "\r\n",
that's also a graceful EOF, and we should return io.EOF instead
of the fmt-wrapped io.EOF from bufio.Reader.ReadSlice.

I found this bug parsing an image attachment from gmail.
Minimal test case stripped down from the original
gmail-generated attachment included.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6118043

Fixes #3492.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6112044

Changes suggested by rsc after last CL.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6117044

Fixes #3540.

R=golang-dev, bradfitz, gustavo
CC=golang-dev
https://golang.org/cl/5996044

R=golang-dev, dave, rsc
CC=golang-dev, remy
https://golang.org/cl/6097044

This used to panic when compiled by gccgo.

Updates #2876.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6100055

When I increased the number of bits that gccgo uses for
untyped floats, the expression 0.52*1e9 was no longer
integral.  This patch fixes that.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6113043

This changes the misc/dist program to generate OS X
packages using pkgbuild and productbuild.

The productbuild utility makes it easy to generate
packages with a custom Distribution file.  This allows
us to add an installcheck script that presents a
friendly message to users who are running on an old
version of Mac OS X.

The change also fixes a few issues with the
postinstall script:

 - In-repo version of the script has been made
   executable. Installers generated using the new
   tools couldn't execute it otherwise.

 - It now uses -d for checking for the existence
   of the Xcode specs directory.

 - The call to sudo.bash has been dropped since cov
   and prof aren't bundled with the binary
   distributions.

Fixes #3455.

Tested on 10.5.8, 10.6.0, 10.6.8 and 10.7.3.

R=adg, golang-dev
CC=golang-dev
https://golang.org/cl/5987044

Fixes #3545.

R=rsc
CC=golang-dev
https://golang.org/cl/6061043

R=rsc, bradfitz
CC=golang-dev
https://golang.org/cl/6099043

Obtained on 700MHz OMAP4460:
benchmark       old ns/op    new ns/op    delta
BenchmarkAbs           61           23  -61.63%

R=dave, remyoudompheng, mtj, rsc
CC=golang-dev
https://golang.org/cl/6094047

Moves the error detection back into execution, where it used to be,
and improves the error message.
Rolls back most of 6009048, which broke lower-case keys in maps.
If it weren't for maps we could detect this at compile time rather than
execution time.

Fixes #3542.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6098051

Fixes #3549.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6107047

Don't set framesetOK to false for hidden input elements.

Handle <param>, <source>, <track>, <textarea>, <iframe>, <noembed>,
and <noscript>

Pass 7 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6094045

benchmark                      old ns/op    new ns/op    delta
BenchmarkAtof64Decimal               344           71  -79.22%
BenchmarkAtof64Float                 397           90  -77.15%
BenchmarkAtof64FloatExp              445          241  -45.84%
BenchmarkAtof64Big                   731          324  -55.68%
BenchmarkAtof64RandomBits            761          453  -40.47%
BenchmarkAtof64RandomFloats          690          314  -54.49%

R=dave, rsc
CC=golang-dev, remy
https://golang.org/cl/5988053