VE-1287: Fix for context menu not being shown. There are not $shields anymore, there are $highlights, however they work different than $shields used to. Fortunatelly there is a method getDimensions which we can use here, instead of measuring with jQuery .width() and .height()
VE-1287: Adjust calculation in shouldBeEmbedded (take into account that context menu now is way wider (not always)).
Merge pull request #4012 from Wikia/VE-1287

VE-1287: Fix for context menu not being shown. There are not $shields an...