[1] Add Safari iOS 10.3 extensions for stylus (RByers著, 4/21/2017, 6:54:02 AM) <https://github.com/w3c/touch-events/commit/c1ded16b10517e686b0fed06eb5e0b7839003c72>

[2] Fix typos (RByers著, 4/21/2017, 7:07:06 AM) <https://github.com/w3c/touch-events/commit/7eb4d91e22d8f74754cd0ac7265b4b53de9d1b53>