docs only. add syntax samples for all attributes and revise targetSdkVersion information.
docs only.
add syntax samples for all attributes and revise
targetSdkVersion information.

Change-Id: I164da5870743be259e64827c36c4c5eed55fa2b0

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base