am cb8e4490: am f73b4f5e: am d87e0484: am 604ae4c7: am 552e5ce6: Merge "Doc change: Add note to use explicit intent when binding to billing service." into klp-modular-docs

* commit 'cb8e4490b48738fc5552894f5e61728a50c86153':
  Doc change: Add note to use explicit intent when binding to billing service.