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* Provision quantity sent should not be of type Decimal
  (not JSON serializable)
* Fix check for user existance in the database

Replace the regexp in mail_admins_safe() with manual parsing of the message.

This reverts commit 8414859f4895e4c67ff0bb13a8d7078c1851596a.

This commit with the current backend implementation
has broken the command for sqlalchemy module.

* Improved performance (reduce interaction with the database)
* Fix command when `userid` option is provided

Conflicts:
	snf-pithos-app/pithos/api/management/commands/reconcile-resources-pithos.py
	snf-pithos-backend/pithos/backends/lib/sqlite/node.py

Add greenlet tracing code in snf-common, useful for debugging stuck
gevent gunicorn workers.

If the environmental variable SYNNEFO_TRACE is set to a non-empty
string, the tracing code will install a SIGTRAP signal handler for the
process, after the Synnefo settings have been imported.

Sending a SIGTRAP signal to the process (eg a gevent gunicorn worker)
will then print the stack trace of each greenlet spawned within the
process to stderr.

in default RDP connection profile served by synnefo

* If no token found in the cookie redirect to astakos login
with next parameter pointing to the request path
* Extend the list of the valid response statuses
* If no expected response status is received, pass to the raised
exception the response status instead of the whole response.

Conflicts:
	snf-pithos-app/pithos/api/settings.py
	snf-pithos-app/pithos/api/util.py

although CONTACT_EMAIL is not a branding setting, we use the branding mechanism
to expose it to brandable templates for practical reasons.

This also fixes the missing contact email from all project related emails.

When approving a modification, automatically set the project to active,
if it has been deactivated.

Blocksize was undefined for the blocker that combines files and rados objecsts.
Define it, according to the block parameters.

How vm connection user gets resolved:

- Use the last user in `users` vm metadata if exists
- Use the last user in `users` vm image metadata if exists
- Use root if vm's image osfamily metadata is Linux
- Use Administrator if vm's image osfamily metadata is windows

Add hardcoded 'default' value in region attribute.

Refs #4086

The newly created attributed used to point in the source node
instead of the destination

Refs: 3510

- Customized logout success message
- Customized add prompt message

use libguestfs naming convention

redhat -> rhel
suse -> opensuse (also cloned as sles)

Make the pool size of the pithos backends a configurable setting,
namely PITHOS_BACKEND_POOL_SIZE.

This method optionally accepts a user paramter and used to return
the objects shared to the user and having a specific domain.
This commit extends this functionality and returns also the objects
owned by the user and having the specific domain

Refs: #3510

Improve performance

Refs: #3510