Merge pull request #226 from odoo-dev/master-website_sale-add-vat-chm

[IMP] website_sale: add vat field on checkout + validate it if base_vat module is installed
Use ast module against __init__.py's for import discovery
[FIX] product: revert change for price_extra. Need to filter by template to apply the price_extra.
[IMP] event_sale: extra QWeb report for printing event badges, with HTML fields for custom content
Detect if controller name correspond to a model name
Prevent scaffold --init to be executed in another module
[IMP] product: rename fields variant_ids into attribute_line_ids on the template and attribute_value_ids on the product.
[FIX] membership: increase priority of product view (don't take this view by default).
[FIX] point_of_sale: fix product view layout
[FIX] website_mail.editor.js moved but still referenced

Commit 0c89ca0f8f2d96e37353348fe33591da8142368b moves
website_mail.editor.js but is still referenced in website_mail.xml
Merge pull request #263 from odoo-dev/master-fix-asset-fme

[FIX] website_mail.editor.js moved but still referenced

Commit 0c89ca0 moves
website_mail.editor.js but is still referenced in website_mail.xml
[FIX] website_mail*: fix + bundlify changes of 0c89ca: move subscription widget from website_mail to website_mail_group
[FIX] website_mail_group: restore missing snippet icon

The file was originally added in website_mail at 59b934
in saas-4 but was lost in master since.
Merge remote-tracking branch 'odoo/master' into master-odoo-cmd-fme
[IMP] Location barcode
[FIX] ir.attachment mess, restore list view
[ADD] "Model" Column in base_action_rule tree view.
Refactor scaffolding engine so it can be used from outside
Added basic scaffolding for webclient module
Moved get_module_root in openerp.modules.module