am bf4cecd2: am 89969d4c: Merge "Doc change: documentation for library projects in sdk." into froyo

Merge commit 'bf4cecd2822ff74c8c246d2595a836b5f1130ad8' into kraken

* commit 'bf4cecd2822ff74c8c246d2595a836b5f1130ad8':
  Doc change: documentation for library projects in sdk.