* Add recipe for 1.1.3 but call configure with --disable-static. This
is OK since there are currently no recipes depending on libzip.
* "make install" puts zipconf.h in lib/libzip/include/ so we need to
move it to develop/headers/libzip/ and fix libzip.pc.
* Change "LN=ln -f" into "LN=ln -frs" in man/Makefile.am to make ln
create relative symlinks. This works fine and also saves space.