Merge changes Id5ac4480,I3e8c60f4,I67cd72ee,Icabaa3a9,Iabdf077a

* changes:
  Convert account REST API acceptance tests to use Google Truth
  Convert ReindexIT to use Google Truth
  Convert VisibleRefFilterIT to use Google Truth
  Convert account REST API acceptance tests to use Google Truth
  Convert config REST API acceptance tests to use Google Truth