Migration to Nextcloud 12 - Released

The todos are sorted by priority.

Todos:

• Portknox auto installation needs to be updated
• New customers get Nextcloud 12 installed
• All customer clouds needs to be on the latest Nextcloud version (11.0.3)
  
• Wait for release of Nextcloud 12.0.1
• Test of the migration for existing customers
• Eat your own Dog-food. Update our own Clouds
  
• Migration all existing customers -