[IMP] sale: remove default "My" filters
[IMP] sale: better version of fce13a5248344981f25eecbca4856586ce7e2500
to ease migration
[IMP] event: Split Ticket: registration are now for one attendee only.

Registration are now for one attendee only. When buying several seats for an event
you have now one registration for each attendee.

event: nb_register field is removed; as well as unnecessary user_id and it subscribe /
unsubscribe behavior. Also slighly cleaned some views.
event_sale: do not auto confirm registrations linked to a draft sale order. Note: strange
origin is a char field, not a sale_order_id. Added a small wizard to edit attendees
data when confirming a sale order containing event related lines.
website_event: when buying free tickets, ask for attendee details. Added template,
controllers to handle that behavior.
website_event_sale: when buying tickets, ask for attendee details. Events ecommerce
should be better integrated with online events, using inheritance to add details
instead of being very different.
[IMP] payment, website_sale: better control of sale order confirmation in ecommerce.

Auto confirmation is now controlled by a field on the acquirer
that proposes to confirm
- at payment (Pay Now button on ecommerce)
- at payment confirmation (transaction feedback)
- never

Also fixed the state of tx for transfer transactions that was modified
for debugging in a previous task but not reverted.
[IMP] hr_recruitment: switched job state selection order
[FIX] hr: fix traceback when updating manager of department (ids is already a list, not necessary to list it)
[IMP] website_quote: onboarding

Views and labels improvements
[IMP] mrp, stock: default uom missing value when importing from csv
[REM] website: my_account link under user menu

This link is not useful anymore as we do have frontend/backend menu
integration since Odoo v8.0.
[IMP] website_hr_recruitment: resume in chatter
[IMP] website_quote: copy suggested products
[IMP] website_sale: details in order recap
[IMP] account: value_amount field  0-1 -> 0-100%
[ADD] mail_message: added model_id field to provide search by application and added 'Mark all read' button, when we are having any unread messages and search by application.
[IMP]mail: make setter method to set model base on model_id.
[FIX]mail,mail_message: fixed issue of missing error by rewriting model_id field in mail_compose_message.