CONN-432: Fail gracefully if global_registry is not found or DB Dataware is not set;
Merge pull request #2865 from Wikia/CONN-432

CONN-432: Fail gracefully if table global_registry is not found
CON-553: Changes in WikiaHubsModel
CON-553: Cleanup in Marketing Toolbox Services and templates after extracting social links
CON-553: Changes in HubsV2
CON-553: Chnages in HubsV3
CON-553: Fixed unit test
CON-553 | HubsV3 page title from Title object instead of WF
Merge remote-tracking branch 'origin/CON-553' into CON-556

Conflicts:
	extensions/wikia/WikiaHubsServices/modules/MarketingToolboxModuleService.class.php
	extensions/wikia/WikiaHubsServices/modules/MarketingToolboxModuleWAMService.class.php
	extensions/wikia/WikiaHubsV3/WikiaHubsV3Controller.class.php