Unified the site setup html structure

Change to unify the site setup html structure
=============================================
- Check for structure:

  #portal-column-content
    #content
      .setup-link
      .documentFirstHeading
      .documentDescription
      #content-core

- Check for body template- class

Related changes
---------------
Templates have also changed in:
  plone.app.contentrules
  plone.app.controlpanel
  plone.app.discussion
  plone.app.registry
  plone.app.users
  Products.CMFPlone

Styles have been updated in plonetheme.sunburst
Bump version to 2.2.0
Preparing release 2.2.0
Back to development: 2.2.1
Update changelog.
Revert "Back to development: 2.2.1"

This reverts commit 9cce938b4cad935bead3987ecfe7a20097bf127b.
Revert "Preparing release 2.2.0"

This reverts commit b6617196901b869ed4254b34880db64947113ec9.
Preparing release 2.2.0
Back to development: 2.2.1
remove dependency on KSS
Preparing release 2.2.1
Back to development: 2.2.2
Merge remote-tracking branch 'origin/master' into
ui-improvements-ploneconf-sprint-2012

Conflicts:
	CHANGES.txt
	plone/app/contentrules/browser/configure.zcml
	plone/app/contentrules/browser/controlpanel.py
	plone/app/contentrules/browser/templates/controlpanel.pt