ADEN-1541 Adding prefooters to Venus skin
ADEN-1541 Adding a label above prefooter
ADEN-1541 i18n update moving wikiamobile-ad-label to adengine-advertisement
ADEN-1541 Code review changes
Merge pull request #5473 from Wikia/aden-1541-prefooter-ads-for-venus

Adding prefooters to Venus skin