[FIXED] project_issue: Kanban state is not being reset when one change the state of issue (Maintenance case: 594481)
[FIX] project_issue: reset kanban_state when changing the stage to be consistent with project_task
[FIX] hr_timesheet_invoice: better invoice price management
- if force product, use its sale price
- if on a journal of type 'general' (eg: expenses) and has a product, use its sale price
- else (eg: expenses) use the total amount on analytic lines