Changes from SPro 3.2 to 3.3

SPro 3.3 is *not* compatible with previous releases. This is mainly due to the introduction of a new, GPL-distributable FFT algorithm. The current release is back to the stand-alone philosophy and no more external libraries are needed except for the SPHERE support. Configuration and installation now made easy through automake and autoconf.

The list of changes is:

• replaced numerical recipes FFT algorithm with a distributable one
• implemented kernel based transforms for FFT and DCT
• removed libgg dependencies (using GNU getopt for option parsing)
• added autoconf/automake stuff
• added windowed CMS
• corrected major bug in band-limited filter-bank analysis