CIRCLE / cloud

Return a list of missing users, and create VMs for the existing users instead of throwing an exception.

Garbage colletor modification: limiting the batch size

Manager: email notification fix
Storage: timeout + file type fix
VM: ActionInProgressError fix
VM: increased timeout

This reverts commit 22b41546

Using join method on the nodes list instead of string concatenation. Logging if monitor info unreachable or None in get_monitor_info method.

Each node, which has unreachable monitor info shown in one error message.

The page now loads when the node can't reach the monitor info values e.g. cpu percent. It gets a default value 0. And if a node's monitor info unreachable shows
an error message.

If the monitor info can't get the values, the values get default 0.

django.db.models.field.subclassing.SubfieldBase removed: https://docs.djangoproject.com/en/1.11/releases/1.10/#features-removed-in-1-10
New field classes require to call full_clean() method on Models, because the to_python() din't call automatically.
Related docs: https://docs.djangoproject.com/en/1.11/releases/1.8/#subfieldbase

dashboard, vm: fix user handling i tests, new Origin type cannot implicit convert to str, fix redirect_chain in 2FA tests, importing vm operation in __init_.py is unnecessary and and brokes the application

closes #432

also display the queue statuses on node detail

Closes #426

closes #443