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Include an additional action to helpdesk view. Based on the current
status of the virtual machine helpdesk user is allowed to start it or
shut it down.

This comes handy since in most cases vm suspension needs to be
followed up with some kind of network cut off of the corresponding
machine. Since no such option is currently available from the
software, machine shutdown is provided as an alternative.

remove deprecated admin app entries

apply authpolicies migrations on top of recently added astakos migrations in
develop branch.

Conflicts:
	snf-cyclades-app/synnefo/api/management/commands/flavor-create.py
	version

Refs #3439

- Use project setting SERVER_EMAIL as sender to all email notifications.
- Remove astakos specific DEFAULT_CONTAC_EMAIL in favor of snf-common's
  CONTACT_EMAIL setting.
- Remove DEFAULT_CONTACT_EMAIL and ADMINS astakos specific settings in favor of
  common ADMINS/MANAGERS/HELPDESK email lists which are now provided by the
  snf-common package. The settings are used as follows:

    * Project created notification: MANAGERS + HELPDESK
    * Account created (moderation pending): MANAGERS + HELPDESK
    * Account activated: MANAGERS + HELPDESK
    * Feedback: HELPDESK

applications can use the setting as to point users in which email
address they should get in contact for support.

To be used as recipients in applications notification messages

Mimic pithos app/ui feedback handling to avoid duplicating boilerplate
code.

New settings:
CYCLADES_USER_FEEDBACK_URL

Deprecated (removed) settings:
FEEDBACK_CONTACTS
FEEDBACK_EMAIL_FROM

Refs #3452

We used to check the limit on applicant; however we would like to
to control pending applications per the original applicant, i.e the
owner. The check is ignored when the applicant is a project admin.

An admin can modify a project, i.e. create an application based on
a previous application. We distinguish the initial applicant, called
the `owner', from the user who submitted the current application,
called the `applicant'.

Show owner instead of applicant in project-list: the applicant can
vary among applications for a single project, but owner is likely
to be unique.

New ASTAKOS_PROJECTS_VISIBLE setting (defaults to False) added to
control whether the projects menu should be visible in astakos user
views.

- We force user quota information to be updated after the completion of
  vm/network create/destroy actions.

Add field `response' in ProjectApplication model.
Add option `-m' in project-control command.

Refs #3493

Distinquish between exceptions in the decorated function and exceptions
in accepting/rejecting the commissions. The first one determines whether
serials should be accepted or rejected, while the second one is an error
indicating that commissioning can not be completed.

Commit 469d099 introduced a typo which caused /plankton/shared_images/
to raise an UnboundLocalError.

Refs #3489

Call to as_sql() raises EmptyResultSet in a couple of occasions,
more importantly when filtering based on an empty list: filter(field__in=[]).

This makes it easier to maintain, since it is used in multiple applications
(astakos.im and quotaholder_app).

Use "ACTIVE" as NIC's default state, to avoid addding a data migration.

Rename functions/methods according to PEP-8 naming conventions.

Inform specifically which users, if any, have been synced, instead of
listing the whole diff. The latter can be recovered by giving the
option --verify.

Refs #3479

Database stack limit issue was triggered by syncing quotas for
all users. It is much faster to compare quotas locally and send
for sync to quotaholder only those that differ.

Refs #3479

Looking up (entity, resource) pairs created a huge query formula
in disjunctive normal form, which apparently brought the db parser
to its limits.

It has been replaced by selecting the holdings by entity only.
This means that in theory we lock more holdings than needed (for any
resource for a given entity), but in practice we would need to
select these holdings anyway.

Until now, a server's public NetworkInterface was not created in the DB
until the arrival of the message from Ganeti hooks. However, the IPv4
address of the NIC is reserved before sending the OP_INSTANCE_CREATE
job to Ganeti.

This drawback of this approach is that if the Ganeti hooks never run
(building ERROR), Cyclades will never associate the IPv4 address with
a machine and therefore this address will never be released.

This commit fixes this issue by creating the VM's public NIC in DB when
creating the server. Also the NetworkInterface model is extended with
a 'state' field to indicate if the NIC is active or still building.
Finally, the corresponding API calls are modified in order to return
only 'ACTIVE' NICs.

typo fix that caused unavailable ram options due to user quota limits to
still be shown as selectable values.