goals for 3.1

[John W. Eaton]

On 21-Mar-2008, David Bateman wrote:

| Ok and here is the patch that moves the diag function into the
| octave_value classes. It also has template versions of the diag function
| in the Array<T> and Sparse<T> classes rather than in the derived classes
|  to simplify the code.

I applied it.

Thanks,

jwe