* add new business application categories
* export edger category
* automated ledger is not only for accounting
* drop allocation_scope/open categories
  All compute nodes are public now
* add use/trade/deposit category
* do not use the same title for 2 categories
* Add trade condition type categories.
  This will be used to automatically select a Trade Condition in slapos_accounting

* drop default_or_child_aggregate_reference
* drop  default_or_child_aggregate_uid catalog key
* drop unused follow_up_default_or_child_aggregate_uid
* drop causality_subscription_request_related_uid related key

This make usage of the relationfield nicer.

This reverts commit d127603b.

See merge request !601

See merge request nexedi/slapos.core!600

See merge request nexedi/slapos.core!599

See merge request !596

See merge request nexedi/slapos.core!595

When an user belonged to a group before running slapformat, the user was previously
removed from that group. This commit avoids it by simply appending SlapOS
additional groups.

  This API will be refactored on the new API

See merge request nexedi/slapos.core!591

   In the case of checkNotCycle, the re-recheck would always fail on a disconnected tree first, so it is mandatory patch the checkConnected (to skip) during the tests.

See merge request nexedi/slapos.core!579

- change url parameters for dispatch link
- use monitoring app landing url
- add url-user-pass parameters to monitor url

See merge request nexedi/slapos.core!592

See merge request nexedi/slapos.core!590