comparing version numbers

[John W. Eaton]

I changed the version number in CVS earlier today to be 2.9.5+ and the
following test from cell2mat.m is now failing:

  %!test
  %! if ([1e6,1e4,1] * str2num (split (version, '.')) > 2010064)
  %!   assert (cell2mat (D), F);  % crashes octave 2.1.64
  %! endif

Do we really need the version number test here?

If there is a need to compare version numbers, then perhaps we should
have a function to do it that can handle things like 2.9.5+ or
2.9.5+SVN-serial-number (or similar).

Comments?

jwe