See this thread for background:
https://groups.google.com/forum/#!topic/golang-dev/xG7vPi21r8g

R=golang-codereviews, r, iant
CC=golang-codereviews
https://golang.org/cl/44290045

NewReader is a convenience function for finding the encoding of
an io.Reader and making a UTF-8 version of that Reader.

R=nigeltao
CC=golang-dev
https://golang.org/cl/43510043

R=nigeltao
CC=golang-dev
https://golang.org/cl/31220043

Lookup now returns the canonical name as well as the Encoding.

This will make it easier for users to discover what encoding they
actually have as a return value from functions in this package.
They will also be able to store the name for re-use.

R=nigeltao, mpvl
CC=golang-dev
https://golang.org/cl/30090043

Implement retrieving encodings by name, according to the names listed
at http://encoding.spec.whatwg.org/#encodings

This is the first step toward implementing the encoding detection
algorithm.

R=nigeltao
CC=golang-dev
https://golang.org/cl/27110043

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/27440043

R=dave
CC=golang-dev
https://golang.org/cl/27420043

This CL makes use of built-in syscall stuff to allow go.net/ipv6
to work together with Go 1.1. Also it's able to improve the package
without churning the Go standard library.

Fixes golang/go#6548.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/15040044

This CL implements a part of syscall package that's not included
in Go 1.1 release for not to annoy people who need some package
in go.net sub repository with Go 1.1.

Update golang/go#6548

R=dave, dsymonds, adg
CC=golang-dev
https://golang.org/cl/19940044

Also removes unnecessary build tag.

R=dave
CC=golang-dev
https://golang.org/cl/21270043

Some multicast tests depend on proper IP routing because multicasting
requires an unicast source address for its delivery. We call a network
interface that can route IP traffic to neighbors a routed interface
conventionally. This CL makes sure that the interface under test is a
routed interface to avoid using non-routed network interfaces for IP
routing.

Also removes unnecessary build tag.

Fixes golang/go#6709.

R=dave
CC=golang-dev
https://golang.org/cl/21260043

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/15550043

Now the package has a code coverage of 74.5% of statements.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/21080043

This CL enables testing raw ICMP packets with and without a setting of
ICMP checksum field.

Actually it's just for Linux because almost all BSD variants never
allow us to touch the checksum field of ICMP but Linux does when we use
the value 255 for the socket level.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/15020047

Update the public suffix list to the latest (October 15. 2013)
data of publicsuffix.org's list which adds around 60 new gTLDs.

The .ar rules changed, the corresponding tests are modified to
reflect this change in the list.

R=nigeltao
CC=golang-dev
https://golang.org/cl/14930048

Update the test cases to reflect the updated
test_psl.txt found on http://publicsuffix.org.

R=nigeltao
CC=golang-dev
https://golang.org/cl/15720044

Also updates IANA protocol constants.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/14587043

Also updates IANA protocol constants.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/14588043

Fixes golang/go#6453.

R=golang-dev, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/13832043

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/13233046

Most modern web browsers support RFC6455, so it's okay to drop older versions.
Fixes golang/go#5628.

R=golang-dev, ukai
CC=golang-dev
https://golang.org/cl/10480043

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/12967043

Update golang/go#6012

R=golang-dev, dsymonds, rsc
CC=golang-dev
https://golang.org/cl/12727043

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/12702044

either (0, nil) or an (n, err) such that n > 0 && err != nil. Both
cases are valid by the io.Reader contract.

R=r
CC=golang-dev
https://golang.org/cl/12513043

R=dave
CC=golang-dev
https://golang.org/cl/11666045

R=dave
CC=golang-dev
https://golang.org/cl/11666044

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/11094043

That's the reason why we now skip the test on freebsd.

R=dave
CC=golang-dev
https://golang.org/cl/10781043

The test expects to run opt.clear just after opt.set.

Fixes golang/go#5696.

R=dave, fullung
CC=golang-dev
https://golang.org/cl/10285044

- fix more multicasting section as pointed out in go.net/ipv6 review
- simplify example codes
- do word alignment; s/multicast group address/multicast group/

R=dave
CC=golang-dev
https://golang.org/cl/10322043

- specify complete resource path to avoid receiving xhtml
- make use of keyword instead of table index

R=dave
CC=golang-dev
https://golang.org/cl/10700045

- do word alignment; s/multicast group address/multicast group/

R=dave
CC=golang-dev
https://golang.org/cl/10685046

- specify complete resource path to avoid receiving xhtml
- make use of keyword instead of table index

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/10738043

This CL reduces unnecessary allocations in ancillary helper
functions. Also clarifies documentation on ControlMessage,
ControlFlags.

benchmark                     old allocs   new allocs    delta
BenchmarkReadWriteNetUDP-2             6            6    0.00%
BenchmarkReadWriteIPv4UDP-2           17           15  -11.76%

R=dave
CC=golang-dev
https://golang.org/cl/9232050

R=dave
CC=golang-dev
https://golang.org/cl/10319043

R=dave
CC=golang-dev
https://golang.org/cl/9379043

Current result on darwin/amd64:
BenchmarkReadWriteNetUDP-2	  100000	     16112 ns/op	     330 B/op	       6 allocs/op
BenchmarkReadWriteIPv4UDP-2	  200000	     14337 ns/op	     654 B/op	      14 allocs/op

Update golang/go#3684

R=dave
CC=golang-dev
https://golang.org/cl/10125044

Update golang/go#5538

R=dave
CC=golang-dev
https://golang.org/cl/9834046

Update golang/go#5538

R=dave
CC=golang-dev
https://golang.org/cl/10044047