ADEN-1502 Change the interface for ad config modules
ADEN-1502 Let AdConfig decide what provider to call on hop
ADEN-1502 Adding wgAdDriverAlwaysCallDart variable
ADEN-1502 Move instantGlobal logic to adContext
ADEN-1502 AdConfig.getProviderList to accept the slotname only
ADEN-1502 Tests update
ADEN-1502 Fix alwaysCallDart + no slot in GPT config
ADEN-1502 There's no instantGlobals on mobile
Merge pull request #5214 from Wikia/aden-1502-sudo-dart

ADEN-1502 Simplify DART setup