Proposed octave-forge for FreeBSD

[Stephen Montgomery-Smith]

I have now created a working octave-forge port for FreeBSD.  You can 
find it at
http://www.math.missouri.edu/~stephen/octave-forge/
Please use the latest version.

To make it:
cd /usr/ports
tar xvfz oct-fg-port-0.4.tar.gz
cd math/octave-forge
make install clean

To delete it:
pkg_delete -r octave-forge-base-0.1

It wraps the FreeBSD packaging system around the octave packaging 
system.  This is fairly straightforward, although when things go wrong, 
they can go very wrong (hence the octave-forge-base port, whose deletion 
gives one a completely fresh slate).

I haven't done a punishing test to make sure that all the subports 
properly bring in their dependencies, although I have made a lot of 
effort to see that it does.  But if someone has a ready made testbed to 
check for this, I would really appreciate it if they could test this for me.

It is implemented as a meta port.  So if any part of octave forge gets 
updated, it should be fairly straightforward to update that part in the 
ports system.

The only packages I didn't get to build were database, java and 
jhandles.  If someone else could do these for me I would appreciate it. 
  I also did not get octcdf to build, because it requires a newer 
version of netcdf than FreeBSD currently has in the ports.

I haven't done any kind of excessive testing to see whether they run 
properly.  So if people could do that to, I would really appreciate it. 
  All I checked was ode45 (which really was the only reason I wanted 
octave-forge working on FreeBSD).

Unless I get suggestions to the contrary, I'll probably submit it to the 
FreeBSD project as a PR in a week or so.

Stephen