Add updated Test Support lib docs to reference. am: debd2a7d41 am: 59df5b8029 am: af5c50e1fa am: dff9dcd4bf
am: 357cb5f216

* commit '357cb5f21614e4c3451abfd9826be662fb5fe0f5':

Change-Id: I7751bcce11c328f67c095cbf6c19a70daa759251