`make install` should install the info files in java

[Alexandre Petit-Bianco]

Andreas Jaeger writes:

> I see.  The problem I actually encountered was that "make
> install-info" didn't work, it failed in the fastjar dir.  I then
> checked which files still need install-info and found only
> libjava...

Right. I don't see anything abnormal in fastjar's Makefile.am, read, I
don't understand why it doesn't create a (void) install-info target.

Do we need to write a fastjar.texi? I can do that -- it's probably a
good idea anyways.

./A