Only return defined sizes of image, not every pixel-width
Remove dpr2 stuff
Improve Events for media-cache delete, add test
Set correct min and maxWidth for different components depending on steps
Add isValidImage check to return invalid if dh-WIDTH should not be existent
Set correct image-width in imageUrl
Fix tests, add new
Move getMediaOutputForDimension into Media_Output_Component
Remove unneeded Events from image-enlarge
Remove double cache-delete

Delete every width-step cache for enlarge on imageChanged of parent only once
Use only file-path for getResponsiveImageSteps instead of ImageData
Move Abstract_Image test into ImageResponsive
Move basic ResponsiveImage test into subfolder