remove deprecated functions from WikiaBaseTest class
(CE-1003) Fix anonymous users not being welcomed

Anonymous users weren't getting welcomed as no task was being queued.
If the user is anonymous, and they weren't welcomed recently, a task
should be created as was the previous functionality.
ADEN-1153 Use Instant Globals for Disaster Recovery
ADEN-1153 Rename variables for Disaster Recovery
ADEN-1153 DR for IVW2 Analytics Provider refactoring
ADEN-1153 Code Review changes
ADEN-1153 Change description for variables in the DefaultSettings file
ADEN-1153 Liftium.js Rely on InstantGlobals variable, not abTest for Disaster recovery
ADEN-1153 IVW2 Fix
Merge pull request #4548 from Wikia/CE-1003

(CE-1003) Fix anonymous users not being welcomed
CE-933 Changing environment condition to exclude only devbox and internal
Merge pull request #4368 from Wikia/aden-1153-instant-globals-for-dr

Aden 1153 instant globals for DR
Merge pull request #4535 from Wikia/PLATFORM-352

remove deprecated functions from WikiaBaseTest class