[OF signal] Removing deprecation warnings

[JuanPi]

Hi Mike,

I have updated the pacjge signal to remove all deprecation warnings
when installe din 4.2.0 or newer.

I am not sure if I removed all unnecessary  #includes (like gripes?),
but I there is no more warnings now.

Also when I run "make check" I get the follwoning failures

 impinvar.m ............................................. PASS    0/12   FAIL 12
  invimpinvar.m .......................................... PASS
0/12   FAIL 12
  sos2tf.m ............................................... PASS    0/2    FAIL 2
  tf2sos.m ............................................... PASS    0/1    FAIL 1
  zp2sos.m ............................................... PASS    0/1    FAIL 1
  cl2bp.cc ............................................... PASS    0/1    FAIL 1

In the case of cl2bp I know is due to the size of the results, it
should be transposed (or the test), because it doesn't fail if I copy
the code to the terminal.

pkg load signal
b = [ 0.0000000000000000 0.0563980420304213 -0.0000000000000000
-0.0119990278695041 -0.0000000000000001 -0.3016146759510104
0.0000000000000001 0.5244313235801866 0.0000000000000001
-0.3016146759510104 -0.0000000000000001 -0.0119990278695041
-0.0000000000000000 0.0563980420304213 0.0000000000000000];
assert(cl2bp(7, 0.25*pi, 0.75*pi, [0.01, 1.04, 0.01], [-0.01, 0.96,
-0.01], 2^11), b.', 1e-14);


I do not know the source for the other failures (no test.log?)

-- 
JuanPi Carbajal
Public GnuPG key: 9C5B72BF
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