DKB update detection
Merge pull request #1473 from psav/dkb_meta

DKB update detection
Number of Improvements:
* Added pages to statistics csv logic.
* Added more pages and UI surface area tested:
 * Tests Cloud Intelligence pages (reports and chargeback)
 * Tests all Cloud pages including: (Availability Zones, Tenants, Flavors and Security Groups)
 * Tests infrastructure pxe page
 * Navigates all accordions on cloud and infrastructure explorer pages
* Refactored perf ui tests to separate files and separated ui perf functions.
* Added uncached query testing, and timing reading the tree.
* Added numpy to requirements.txt
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