Fixes #1290.

R=rsc
CC=golang-dev
https://golang.org/cl/3259043

R=rsc
CC=golang-dev
https://golang.org/cl/3268042

R=lvd
CC=golang-dev
https://golang.org/cl/3391044

html: unescape numeric entities, and complete the named entities table, including two-character entities.

Fixes #1233.

R=nigeltao
CC=golang-dev
https://golang.org/cl/3445041

R=gri
CC=golang-dev
https://golang.org/cl/3355041

(fixes new godoc crash when looking at spec)

R=rsc, r, iant
CC=golang-dev
https://golang.org/cl/3488041

	Specifically:

	* lib/godoc:
	- provide file set (FSet) argument to formatters where needed

	* src/cmd:
	- cgo, ebnflint, godoc, gofmt, goinstall: provide file set (fset) where needed
	- godoc: remove local binary search with sort.Search (change by rsc),
	  extract file set for formatters

	* src/pkg:
	- exp/eval: remove embedded token.Position fields from nodes and replace
	  with named token.Pos fields; add corresponding Pos() accessor methods
	- go/token: added file.Line(), changed signature of File.Position()

	* test/fixedbugs/:
	- bug206.go: change test to not rely on token.Pos details

	* added various extra comments
	* Runs all.bash
	* gofmt formats all of src, misc w/o changes
	* godoc runs

	* performance:
	- The new version of godoc consumes about the same space after indexing
	  has completed, but indexing is half the speed. Significant space savings
	  are expected from smaller ASTs, but since they are thrown away after a
	  file has been indexed, this is not visible anymore. The slower indexing
	  time is due to the much more expensive computation of line information.
	  However, with the new compressed position information, indexing can be
	  rewritten and simplified. Furthermore, computing the line info can be
	  done more efficiently.

        New godoc, immediately after indexing completed (best of three runs):

	  PID COMMAND      %CPU   TIME   #TH #PRTS #MREGS RPRVT  RSHRD  RSIZE  VSIZE
	44381 godoc        0.0%  0:38.00   4    19    149  145M   184K   148M   176M

	2010/12/03 17:58:35 index updated (39.231s, 18505 unique words, 386387 spots)
	2010/12/03 17:58:35 bytes=90858456 footprint=199182584
	2010/12/03 17:58:36 bytes=47858568 footprint=167295224

	Old godoc, immediately after indexing completed (best of three runs):

	  PID COMMAND      %CPU   TIME   #TH #PRTS #MREGS RPRVT  RSHRD  RSIZE  VSIZE
	23167 godoc        0.0%  0:22.02   4    17    132  129M   184K   132M   173M

	2010/12/03 14:51:32 index updated (24.892s, 18765 unique words, 393830 spots)
	2010/12/03 14:51:32 bytes=66404528 footprint=163907832
	2010/12/03 14:51:32 bytes=46282224 footprint=163907832

	The different numbers for unique words/spots stem from the fact the the
	two workspaces are not exactly identical. The new godoc maintains a large
	file set data structure during indexing which (probably) is the reason
	for the larger heap (90858456 vs 66404528) before garbage collection.

R=rsc, r
CC=golang-dev
https://golang.org/cl/3050041

TBR=r
CC=golang-dev
https://golang.org/cl/3417042

8l was broken by commit 7ac0d2eed9, it caused .data to be page aligned in the file - which is not how Plan 9 expects things to be.
Also .rodata was layed out in a similar fashion.

Not sure when signame was introduced, but added a stub.
Removed the symo assignment in asm.c as it is not currently used.

Fix runtime breakage after commit 629c065d36 which prefixes all external symbols with runtime·.

R=rsc
CC=golang-dev
https://golang.org/cl/2674041

Split patent grant clause out of LICENSE file
and update text to be more like that used by WebM.
These changes should make Go more acceptable
to the Fedora project and they are acceptable to the FSF.

R=iant
CC=golang-dev
https://golang.org/cl/3103042

Note:
* Exp2 doesn't have a special case for very small arguments
* Exp2 hasn't been subject to a proper error analysis

Also:
* add tests for Exp2 with integer argument
* always test Go versions of Exp and Exp2

R=rsc
CC=Charlie Dorian, PeterGo, golang-dev
https://golang.org/cl/3481041

Allow less precise timing on build machines.

TBR=r
CC=golang-dev
https://golang.org/cl/3391043

R=rsc
CC=golang-dev
https://golang.org/cl/3483041

-found by Dave Cheney

R=rsc
CC=golang-dev
https://golang.org/cl/3460042

R=rsc
CC=golang-dev
https://golang.org/cl/3418043

	fmt.Printf("%U", 1) yields "U+0001"
It's essentially "U+%.4x" but lets you override the precision works in scan, too.

R=rsc
CC=golang-dev
https://golang.org/cl/3423043

With credit to Gustavo Niemeyer, who hinted at this approach
in #go-nuts.

R=adg, rsc, niemeyer, r
CC=golang-dev
https://golang.org/cl/3416043

R=rsc, r
CC=golang-dev
https://golang.org/cl/3421041

R=adg
CC=golang-dev
https://golang.org/cl/3473041

R=adg, r2
CC=golang-dev
https://golang.org/cl/3430042

Fixes #1303.

R=rsc, PeterGo
CC=golang-dev
https://golang.org/cl/3442041

R=rsc
CC=golang-dev
https://golang.org/cl/3309041

R=bradfitz, dangabrad
CC=golang-dev
https://golang.org/cl/3433042

R=r, r2
CC=golang-dev
https://golang.org/cl/3437041

R=r, r2
CC=golang-dev
https://golang.org/cl/3433041

R=r, iant
CC=golang-dev
https://golang.org/cl/3434041

R=r
CC=golang-dev
https://golang.org/cl/3391042

- use math.Sqrt instead of Math.sqrt
- use float64 for Point fields to match math.Sqrt
- distinguish between Point and Point3D for clarity
- add alignment sizes for complex types

R=r, rsc, iant, ken2
CC=golang-dev
https://golang.org/cl/3420041

Fixes #1179.

R=gri
CC=golang-dev
https://golang.org/cl/3225042

R=iant, r
CC=golang-dev
https://golang.org/cl/3416042

Doing the tail recursion elimination explicitly
seems safer than leaving it to the compiler;
the code is still clean and easy to understand.

R=r, r2, gri
CC=golang-dev
https://golang.org/cl/3373041

R=rsc, iant2
CC=golang-dev
https://golang.org/cl/3417041

Fixes #1306.

R=rsc
CC=golang-dev
https://golang.org/cl/3332043

Before one could say
	{field}
or
	{field|formatter}
Now one can also say
	{field1 field2 field3}
or
	{field1 field2 field3|formatter}
and the fields are passed as successive arguments to the formatter,
analogous to fmt.Print.

R=rsc, gri
CC=golang-dev
https://golang.org/cl/3385041

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/3395041

Make them more like Printf, with a ... final argument.  This breaks
code with existing formatters but not the templates that use them.

R=rsc, gri
CC=golang-dev
https://golang.org/cl/3378041

Changed all uses of bytes.Add (aside from those testing bytes.Add) to append(a, b...).
Also ran "gofmt -s" and made use of copy([]byte, string) in the fasta benchmark.

R=golang-dev, r, r2
CC=golang-dev
https://golang.org/cl/3302042

This means that any Writer can be used safely
even when Output is called concurrently.
Fixes #1302.

R=r, nigeltao_gnome
CC=golang-dev
https://golang.org/cl/3300042

Make Split work on backslashes as well as on slashes under Windows
and support the "C:filename" special case. Also add corresponding
tests.

R=r, rsc, PeterGo, r2, brainman
CC=golang-dev
https://golang.org/cl/3008041

R=iant
CC=golang-dev
https://golang.org/cl/3344044