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Make all quotaholder commissions to have a name. Since, Cyclades does
not store the association of a commission with a resource, we include
the resource in the commission name.

Rename CYCLADES_ASTAKOS_SERVICE_TOKEN to CYCLADES_SERVICE_TOKEN for
uniformity.

This can happen, if the actual usage registered by a service exceeds
the quota limit.
Advise the user to try the --force option.

Use commission name "RECONCILE" to distinguish such operations
in the quotaholder provision log.

Do not consider 0 usage for users and resources that are not included in
Quotaholder resources list, since Quotaholder returns zero usage for all
users and all resources. If a user/resource does not belong to QH
respond then it can not be an Astakos user.

Refs #3606 #3491 #3661

Rename 'cyclades-reconcile-commissions' to 'reconcile-commissions-cyclades.'
Rename 'cyclades-usage-verify' to 'reconcile-resources-cyclades.'

Extend 'cyclades-usage-verify' management command to cover the usage of
'cyclades-reset-usage' and remove the second one. The new command
reconciles resources(usage) by detecting inconsistencies between the
usage of resources in Astakos and Cyclades DB and fixing them by issuing
a commission with the difference of the usage in DB and Astakos. If
there is a pending commission for a resource, reconciliation for this
resource is skipped. Refs #3627

Also, make this command do not consider only users that exist in
Cyclades DB, but also users that exist in Quotaholder. For such users,
it is assumed that they have zero usage for all Cyclades resources.
Refs #3606 #3491

Move cyclades functions that are useful for all managament commands, like
pprint_table or parse_filters, to snf-webproject.

Implement quotas-init and quotas-verify management commands.
- quotas-init sets quotas of Quotaholder to the state of quotas in
  Cyclades DB
- quotas-verify detects incosistencies between quotas in Quotaholder and
  Cycldes DB.