ADEN-1266 Ads for interactive maps (squashed, port from release-234)

Conflicts:
	extensions/wikia/WikiaInteractiveMaps/css/intMapParserTag.scss
	extensions/wikia/WikiaInteractiveMaps/js/WikiaInteractiveMapsParserTag.js
	extensions/wikia/WikiaInteractiveMaps/templates/intMapParserTagMapIframe.mustache
Merge pull request #4225 from Wikia/aden-1266-ads-on-interactive-maps-ported-to-dev

ADEN-1266 Ads for interactive maps (squashed, port from release-234)