[MERGE] [FIX] Various improvements in quick create in kanban view.

- [FIX] crm: fixed crash when searching leads/opportunities on section_id then trying to create a new lead/opportunity. The crash was due to a 'default_section_id: self' in the search_view, that is not supported in 7.0.
- [FIX] crm, task, issue, hr_applicant: fixed quick create in kanban view not taking into account the stage in which it is being created.
- [FIX] mail: when tracking modified values for automatic subscription, also take into account default values coming from the context
- [FIX] issue: added default responsible

bzr revid: tde@openerp.com-20130621122737-yu9ui86t1hvc2t2g