[REVERT] commit 5e5c73e

Branch 8.0 is a **stable** branch. This mean no database schema
changes.
[FIX] crm, hr_recruitment, task, issue: fixed default priorities + order based on priority (desc for everyone now)
[IMP] Cleaning of reporting (group_by, filters), adding new favourites and default views, some renaming (py and xml files)