am 04680858: docs only. Add new web pages for sample apps included in the SDK. Revise the existing sample app web pages. Delete screenshots for notepad and lunar lander (these have moved into frameworks/base/docs/html/guide/samples/image/.

Merge commit '04680858a0671ad615f088edeea87b61ea243f24' into eclair

* commit '04680858a0671ad615f088edeea87b61ea243f24':
  docs only.