Merge pull request rackerlabs#232 from rackerlabs/issue-222

Sort sites by name and fix Ansible warning

Merge pull request rackerlabs#229 from rackerlabs/issue46-scan-engine…

…-pooling

Adding scan engine pooling

Merge pull request rackerlabs#221 from rackerlabs/components-rename

Components rename

Merge pull request rackerlabs#219 from rackerlabs/add-missing-queryse…

…ts-to-api

Added missing queryset back to API views.

Merge pull request rackerlabs#217 from rackerlabs/minor-tuning-of-uws…

…gi-models-and-api-client

Minor tuning of uwsgi models and api client

Merge pull request rackerlabs#212 from rackerlabs/issue-204-validate-…

…scan-status-changes

Validate scan status changes

Merge pull request rackerlabs#210 from rackerlabs/issue-228-global-ex…

…cluded-targets

Add globally excluded targets model

Merge pull request rackerlabs#207 from rackerlabs/kill-scan-process-ids

Kill scan process ids

Merge pull request rackerlabs#202 from rackerlabs/issue-193-allow-sca…

…n-status-to-be-cancelled

Added 'cancelled' option in models.ScheduledScan.SCAN_STATUS_CHOICES

Merge pull request rackerlabs#201 from rackerlabs/issue-191-add-enabl…

…e-disable-switch-to-scans

Added enable/disable functionality to Scan model