doc/go1.1.html: add links to the text, write some new sections
doc/go1.1.html: add links to the text, write some new sections

R=golang-dev, rsc, dave
CC=golang-dev
https://codereview.appspot.com/7914043

dsriram/golang,apparentlymart/golang,dsriram/golang,tv42/old-go,pombredanne/go-deleteme,dsriram/golang,dsriram/golang,pombredanne/go-deleteme,apparentlymart/golang,gnanderson/go,gnanderson/go,apparentlymart/golang,tv42/old-go,pombredanne/go-deleteme,apparentlymart/golang,apparentlymart/golang,gnanderson/go,tv42/old-go,tv42/old-go,gnanderson/go,gnanderson/go,tv42/old-go,gnanderson/go,pombredanne/go-deleteme,dsriram/golang,dsriram/golang,tv42/old-go,gnanderson/go,apparentlymart/golang,pombredanne/go-deleteme,tv42/old-go,dsriram/golang,pombredanne/go-deleteme,apparentlymart/golang,pombredanne/go-deleteme