We continue to compile external/apache-http into ext.jar. This contains
a few changes apart fom the classes moving around :
- Makefile changes to build docs and api-stubs for now. A future change
will revert these changes and remove these classes from stubs and
docs.
- Hardcode event IDs in legacyerrorstrings to avoid a dependency between
the frameworks and apache. These strings are on their way out and will
never change anyway.
- Remove imports due to {@link} tags and use {@code} instead.
- Remove an accidental(?) dependency on apache commons code that's a
part of apache-http.
bug: 18027885
Change-Id: I51cd038d846ec7d02c283a4541b10a6a9cf62ecf
