In order to properly support libraries on Android, PDE and build scripts should create the
appropriate accompanying entries in AndroidManifest.xml.

Most significantly, this should include permissions. So, for instance, a library that accesses the
camera would need to add to the manifest file:
<uses-permission android:name="android.permission.CAMERA" />

Ideally, this should also include:
<intent-filter>
<uses-library>

-- which would allow libraries to provide functionality for interconnecting with other Android
applications and building against libraries, minus the need to support that functionality in core.