A+C: Vega Garcia Luis Alfonso (individual CLA)

Generated by addca.

R=gobot
CC=golang-dev
https://codereview.appspot.com/7179054
xml: Support fields not of type []byte when marshaling ",chardata"

Fixes issue 4506.

R=rsc, remyoudompheng
CC=golang-dev
https://codereview.appspot.com/7106045

Committer: Russ Cox <rsc@golang.org>