STFTB - Scilab Time Frequency Toolbox
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2.0.0 - sci_gateways rewritten for Scilab-6
      - Parameter checking improved 
      - Matlab compatibility functions (mtlb_*) replaced by the Scilab
         equivalents
      - Help page examples verified and graphical outputs included
      - bug fixes
      - Ctfrxxx and tfrxxx functions made equivalent when signal is a
        single vector
      - Ctfrrsp and tfrrsp modified to work with rectangular windows.
        calling sequence of reassigned.c modified to add one more
        argument (Threshold)
        + tfrgrd, the Scilab sinc function is sin(x)/x while the Cstftb
                  one is sin(%pi*x)/(%pi*x)
        + Ctfrbj, Ctfrbud when Nfreq==N and is odd
        + Chtl : the (1,1) element was not computed
      - triang, hamming, hanning, nutall, blackman, harris, barthann,
        papoulis windows definition changed in tftb_window and Cwindow
        according to the
        en.wikipedia.org/wiki/Window_function#Hann_and_Hamming_windows
        pages.
      - Kaiser ans Nutbess windows added in Cwindow.
      - Hanna window replaced by power of Sine window

1.2.2 - Removing of memory leaks in the sci_gateway (thanks to Serge Steer)
       
1.2.1 - help structure is changed and Chapters are added

1.2   -  some bugs are removed
      -  sci_gateway added (Ctftb was ported to scilab)
      - new demos

1.1.1 - some bugs are removed

1.1   - some bugs are removed
      - tftb_window can be plotted 
      - frspec and frpowerspec added

1.0   - initial port to scilab 5

