[MRG] synchronize with main branch
[CHG] reorganize files, remove old menus
[ADD] cron to import sale orders
[REF] removed dead code, moved some stuff in old_stuff.py (no longer imported)
[REF] update __openerp__ manifest, remove dependencies on product_links and product_images (part of magentoerpconnect_export_catalog)
[REF] update the copyright attribution according to the facts and change the license from GPL to AGPL
[ADD] created empty modules magentoerpconnect_catalog and magentoerpconnect_export_partner
[REF] extracted the export of partners in the module magentoerpconnect_export_partner

* the magento bindings are now readonly if the module is not installed
* as soon as the module is installed, the partners are exported or deleted on all the magento backends
when they are added / removed from the bindings
* still experimental: no integration with base_partner_surname, no password set, no mappings for everything, no mapping for addresses
[REF] reorganization of code / big cleaning:

* reorganize files, remove old menus
* removed dead code, moved some stuff in old_stuff.py (no longer imported)
* update __openerp__ manifest, remove dependencies on product_links and
  product_images (part of magentoerpconnect_export_catalog)
* update the copyright attribution according to the facts and change the
  license from GPL to AGPL

* prepared an empty module magentoerpconnect_catalog for the 'catalog management'
  and moved the dependencies to product_links and product_images to the latter

* extracted the export of partners in the module magentoerpconnect_export_partner

  * the magento bindings are now readonly if the module is not installed
  * as soon as the module is installed, the partners are exported or deleted on
    all the magento backends when they are added / removed from the bindings
  * still experimental: no integration with base_partner_surname, no password
    set, no mappings for everything, no mapping for addresses
[FIX] wrong arguments and code
[ADD] views for magento.account.invoice
[FIX] remove wrong relation external.shop.group
[FIX] access rights on magento.stock.picking instead of magento.stock.picking.out
[REF] updated __openerp__ manifest, removed deprecated imports
[REF] changed copyright attribution to reflect the facts and changed the license from GPL to AGPL in the manifest
[FIX] remove access rights of obsolete models
[IMP] prevent creation and deletion of jobs and workers and prevents edition of workers from the views
[REM] removed the obsolete 'Export Mapping Manager' group
[FIX] order of xml loading
[FIX] the top level category in magento has no name which is mandatory, use the name of the backend instead