Move from using Google Analytics to Piwik

Move from using Google Analytics to Piwik

Piwik <http://piwik.org/> is an Open Source alternative to using Google
Analytics.

	* amazon.html: google.template -> stats.template

	* changes/changes.html: Ditto.

	* docs/index.html: Ditto.

	* download.html: Ditto.

	* index.html: Ditto.

	* lists.html: Ditto.

	* missing.html: Ditto.

	* news.html: Ditto.

	* people.html: Ditto.

	* people/hroptatyr.html: Ditto.

	* people/lg.html: Ditto.

	* people/njsf.html: Ditto.

	* people/steve.html: Ditto.

	* screenshots.html: Ditto.

	* search.html: Ditto.

	* store.html: Ditto.

	* validate.el (validate): Ditto.

	* templates/stats.template: Replace the Google Analytics
	javascript with Piwik stuff.

	* templates/template.html: google.template -> stats.template

Signed-off-by: Steve Youngs <steve@sxemacs.org>