Update www/plone3 package to 3.1.4.

Change log

    * Fix an error in the French translation which broke the kupu visual editor.
    * Fix an error which broke through-the-web customization of views,
      viewlets and portlets.
    * Fix error in the sharing page which broke updating of local roles.

Updated packages and products

    * Products.CMFPlone 3.1.4
    * Products.kupu 1.4.11
    * plone.app.customerize 1.1.2
    * plone.app.workflow 1.1.4

(taca)