Issue #1175082 by mikeryan, grendzy, pcambra, alexweber, greenjuls,...

Issue #1175082 by mikeryan, grendzy, pcambra, alexweber, greenjuls, danylevskyi, mrfelton, radiobuzzer, Bevan, jhedstrom, marvil07, rocket777, jpklein, David_Rothstein, Pierre Paul Lefebvre, darrenmothersele, xcafebabe, clemens.tolboom, Cottser, asherry, alanburke, fuerst, albarin | marcusx: Added Field collection field handler for migrate module.