[OctDev] fminbnd incompatibility with octave-3.4.x

[The T. <the...@fr...>]

invoking ellip() of signal package causes error when calling to fminbnd(). Obviously __ellip_ws() expects some other parameter signature of fminbnd. [b,a]=ellip(5,1,90,[.1,.2])
error: Invalid call to fminbnd.  Correct usage is:

 -- Function File: [X, FVAL, INFO, OUTPUT] = fminbnd (FUN, A, B,
          OPTIONS)
 
error: called from:
error:   /usr/local/share/octave/3.4.1/m/help/print_usage.m at line 87, column 5
error:   /usr/local/share/octave/3.4.1/m/optimization/fminbnd.m at line 64, column 5
error:   /usr/local/share/octave/packages/signal-1.0.11/__ellip_ws.m at line 37, column 3
error:   /usr/local/share/octave/packages/signal-1.0.11/ncauer.m at line 40, column 3
error:   /usr/local/share/octave/packages/signal-1.0.11/ellip.m at line 110, column 21