[IMP]kanban View: harmonize kanban view by changing head as bold and centered and aliases as centered
Merge pull request #870 from odoo-dev/master-harmonize-kanban-view-rba

[IMP] crm, gamification, hr_recruitment, project, sales_team, stock: light kanban view harmonization.

Main changes :
- slight harmonization: bold centered titles, aliases display if left and right parts defined
- remove ".oe.e .oe_alias" classes + use of old icons; use fontawesome instead in the various kanban view
- regenerated the css for job position (weird indentation issues)