am 4e60d012: docs only. add syntax samples for all attributes and revise targetSdkVersion information.

Merge commit '4e60d012c95f50ddd2a1ba6202e4fec3c9cfd3df' into eclair

* commit '4e60d012c95f50ddd2a1ba6202e4fec3c9cfd3df':
  docs only.