Original change by joeo@abreu on 2009/04/06 19:54:13.
Implement SDK add-ons in the build system.
- Add an option to use the standard javadoc doclet instead
of droiddoc, since droiddocs non-sdk templates aren't
ready for prime time.
- Add the notion of a stubs for a library. It's only
implemented for java libraries, but when we do native
libraries in the NDK or sdk-addons, it will work there too.
Original author: joeo
Merged from: //branches/cupcake/...
Original author: android-build
Automated import of CL 145655
Robert Greenwalt