(port did not build with ORBit ports >= 0.5.10).
- GNU_CONFIGURE -> USE_AUTOMAKE, in order to incorporate variables from
Makefile.buildvars in Makefiles.
- Move removal of "test" directory from Makefile.in to Makefile.am, to
accommodate the fact that we're now using automake: Remove
patch-Makefile.in and add patch-Makefile.am.
- Expand pkg-descr a bit.
- Alphabetise pkg-plist and add directories.
- Bump PORTREVISION.