Merge "docs: Added note in LayoutTransition class reference that APPEARING and DISAPPEARING animation timelines cannot overlap" into nyc-dev am: 0b498d6139 am: 747354bb54 am: a4fe3faf24 am: a1247918db
am: d8c5d1a3c3

Change-Id: I912716e1fb04019dc52b0f4bf0af107b6721158b