refactored unit test for ImagesServing::calculateScaledImageSizes method
added default value of $destImageWidth in MarketingToolboxImageModel::getImageThumbData, so for smaller images than 85x15 the width will not be changed to 85
return always integer values for width and height
test for ImagesService::getLocalFileThumbUrlAndSizes
Merge branch 'bugid-96110' into dev