am f210f048: am 88ff62db: Merge change I06398298 into eclair

Merge commit 'f210f048f754e5c39c192ecdbadd3aeac26471ed' into eclair-mr2-plus-aosp

* commit 'f210f048f754e5c39c192ecdbadd3aeac26471ed':
  docs: add images used in BT developer guide.