Issue #1252606 by rlhawk, dsnopek, attiks, alansaviolobo, MariaDenysyuk, j0rd, sushyl, Adysone, Alan Evans, mondrake, andypost, alexpott, sun, tstoeckler: Add crop anchor option to Scale and Crop image effect

Issue #2479487 by claudiu.cristea, legolasbo, mondrake, yched, alexpott, jhedstrom, dawehner, Wim Leers: ImageStyles can be deleted while having dependent configuration