[IMP] extract subtype ordering from lp:~openerp-dev/openobject-addons/trunk-visibility-hr_holidays-darshan.
[IMP]add help in sequence field.
[MERGE] Sync with trunk
[ADD] mail: mail_message_subtype: add a hidden field, to hide some subtypes from
the followers widget. This will be used to hide the created
subtype on the task or issues for example, while still available
on the related project. The subtype on the task is necessary
to trigger the various autosubscription and notification mechanisms
but its display on task/issue is not.
[IMP] sale_crm: subtypes: added sequence
[IMP] project, project_issue: added sequence on subtypes
[IMP] mail: do not fetch hidden subtypes in follower widgets
[IMP] mail: subtype model: cleaning + improved form view to add the new fields
[IMP] crm: added sequence on subtypes
[FIX] mail: fixed regression caused by forward-porting saas-3: re-removed
the hack in mail_thread about subscription in create mode.
[CLEAN] gamification: removed .moved folder, added when forward porting
saas-3 into trunk.
[MERGE] Sync with trunk, because trunk was broken at last update
[MERGE] [IMP] mail: subtype: order by application + allow to hide technical subtypes + updated addons subtypes

- mail.message.subtype:
-- added sequence field, used to order subtypes when displaying them
-- added hidden field, used to hide some subtypes. Subtypes like 'Task Created' or 'Issue Created' are not necessary on a task or issue, but useful on the project form view. Indeed by following the task created subtype on the project, the user is notified of new tasks. However on the task itself it makes no sense to be able to follow task created. This subtype has to exist due to the technical implementation, but should be hidden in the followers widget of the task.
- mail: updated followers widget accordingly, and display subtypes by application with a visual border to separate them

- project, crm, sale_crm: updated hidden and sequence of subtypes