improve searching for resources

See merge request !86

Fix nosql resource

See merge request !85

when self creating resources pick more abstract owner

See merge request !83

E.g. when a user sel-creates a dns entry, this entry should belong to the zone
and not the user itself (in case the user owns the zone).

Indirect ownership

See merge request !81

Allow resources to own other resources for delegating ownership.

With this new approach it should be enough to assign an owner to the
contact resource. Everything else follows naturally in case no
customization is needed.

remove jabber resources

See merge request !82

show more resource extra information for users

See merge request !79

prevent users from deleting email domains

See merge request !78

properly cleanup email resources when removing domain

See merge request !77

also have a cleanup job for when something does go wrong

dns and contact resources

See merge request !76

also make replay tests independent of order