nodewords 6.x-1.9

Changes since DRUPAL-6--1-8:

• By gbernier: Changed the permission the user must have to be able to edit all the meta tags, even the ones that are not selected to be shown in the edit forms.
• By kiamlaluno: Corrected the way the location meta tags are generated.
• By kiamlaluno: Follow-up to the fix for #654206.
• #650362 by ao2: Canonical URL doesn't use the path alias (and URL is relative when base_url is empty).
• #658630 by kiamlaluno: Generated canonical URL is not correct. By kiamlaluno: re-arranged the code.
• #651898 by kiamlaluno: {nodewords_custom}.path is copied in {nodewords}.id.
• #659814 by kiamlaluno: The table shown in the other pages settings doesn't have the rows draggable anymore.
• By kiamlaluno: Added the code to set a Drupal variable used in branch 6.x-3 to verify from which 6.x-1 version the module is being updated; removed Drupal variables not used anymore.
• By kiamlaluno: Changed the code to validate the base URL; the code doesn't accept a base URL that contains just slashes.
• #660136 by beeradb: Canonical URL does not allow to use äöü.