am a1d08886: Merge "Only output proguard keep for nonempty attribute name in the AndroidManifest.xml." into eclair

Merge commit 'a1d08886ec8549878ad16c19754a3239706fb61b' into eclair-plus-aosp

* commit 'a1d08886ec8549878ad16c19754a3239706fb61b':
  Only output proguard keep for nonempty attribute name in the AndroidManifest.xml.