[IMP] Improve stock's barcode start page

remove module_boot() usage
[IMP] changed barcode start page url to /stock/barcode

As a convention we use the module name as first fragment of the url
Merge pull request #1209 from odoo-dev/master-stock-fme

[IMP] Improve stock's barcode start page

- Created a template for the start page
- Removed now useless call to module_boot()
- Changed url to /stock/barcode
[IMP]add common Fold option field and display_empty_column on Kanban Group_by

[IMP]remove group_by_full in crm, hr_recruitment kanban load column

[IMP]apply default display in website_forum_doc

[IMP]remove default_group_by field from the kanban fields.

[IMP]website_forum_doc remove document_stage_id from kanabn