html: parse start tags that aren't explicitly otherwise dealt with.
html: parse start tags that aren't explicitly otherwise dealt with.

R=golang-dev, nigeltao
CC=golang-dev
http://codereview.appspot.com/4626080

Committer: Nigel Tao <58ae08b3356928ff9c67562b4719487d54fe8348@golang.org>
abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go,abustany/go