Updated 10.1 samples in synch with master branch.

Aligned next branch with master for the following samples:

cascadescookbookcpp, hellocascades, photobomber, speedwriter, tldr, cascadescookbookqml, helloforeignwindow, lightningcrossfadecpp, poemmaker, stampcollector, weatherguesser, lightningcrossfadeqml, pullmybeard, starshipsettings, bucketlist, cowbell, kakel, quotes