Handle firmware build request while another is being built.
Fixes #584. Exclude member selection parameter of filtering.
Merge branch 'bug584'
Fix typo on NodeSafeState notification.
Upgrade dependencies to Django 1.7
Define foreign key relation to User model using AUTH_USER_MODEL.
Move resources init to AppConfig.ready()

Avoid AppRegistryNotReady exception.
Replace generate_chainer_manager() with new QuerySet.as_manager()
Rename get_query_set to get_queryset (deprecated).
Rename module_name to model_name (deprecation).
Update admin base template with django1.7 changes.
Fix dashboard broken layout.

Clear CSS floats introduced by django commit
https://github.com/django/django/commit/6f470650d097abbc06021efd50b2bdc3c9ce4d3b
Handle colored_address for unsaved iface instances.
Select explicitly fields to use via fields or exclude.
Remove autodiscover() from URLconf.

The admin automatically calls autodiscover() when Django starts.
Rename method queryset to get_queryset (Django 1.6)
Fix admin.E108 error with dynamic creation of sliver ifaces.
Update selector according to future changes.

In Django 1.8, widget attribute readonly=True will be rendered as 'readonly'.
Cosmetics: fix CSS to proper handle monospace.
Remove 'south' from INSTALLED_APPS.