Revert 39421 - Switch to putting appversion at top level of XML
Revert 39421 - Switch to putting appversion at top level of XML

This change puts appversion at the same level as buildtime, and
so it is avalable (now) for use in histogram versioning, as well
as stability versioning (or user metrics versioning).

r=huanr
Review URL: http://codereview.chromium.org/646056

TBR=jar@chromium.org
Review URL: http://codereview.chromium.org/651012

git-svn-id: http://src.chromium.org/svn/trunk/src@39423 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 1178b18be9c901269c07e09a2a26ea6194afdc66
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser