+2.0.0-b9 - 8/5/00
+ Added RCS Id strings to executable files
+ Added RPM Spec file for RPM package creation
+ Added loading of ASCII phanthom definitions from files
+ Added frequency_filter option to reconstruction
+ Fixed compilation for non-SGP architectures
+ Decomposed SignalFilter class into SignalProcess and CreateFilter classes
+2.0.0-b8 - 8/1/00
+ Added line color support to SGP
+ Fixed lineAbs bug
+
+2.0.0-b7 - 7/25/00
+ Finished support for dmallocxx library
+ Fixed bug in SignalFilter::convertFilterMethodNameToID()
+ Rewrote SGP & EZPlot to use C++ object-oriented. SGP can now write to
+ G2 windows and well as WXWindows.
+ ctsim program: "Create Phantom" now shows phantom object
+ Fixed row-plot bug in if-2
+ Reworked EZPlot's multiple plot operation
+
+2.0.0-b6 - 7/22/00
+ ctsim program: improved initial size and scroll area for image
+ and projection files
+ ctsim program: added rasterization parameters, projections parameters,
+ and reconstruction parameters dialogs
+ Moved char[] static definition from header files to c++ files
+ Completely reorganized option processing in classes to improve
+ expandability and to assist ctsim graphical user interface.
+
+2.0.0-b5 - 7/17/00
+ ctsim program: Added dialog to set minimum/maximum display levels
+ Started ctsim.tex document file
+
+2.0.0-b4 - 7/13/00
+ Fixed compiler warnings at -Wall level
+ Began work on CTSim program to be graphical front-end of all functions
+ Moved current src/*.cpp to tools/*.cpp
+ Made CTSim graphical front-end's home to be src/
+
+2.0.0-b3 - 7/10/00
+ Added highly optimized backprojection method idiff3
+ Moved comparative stats to if-2 program from ifinfo
+ Fixed image display in if2img using G2 library
+ Added column-plot and row-plot options to if-2
+ Added autoselection of analytic/calculated spatial responses to SignalFilter
+ Added frequency-based preinterpolation to SignalFilter and idiff3
+ backprojection method. Currently, this technique is still under
+ development and debugging
+ Moved graphic file writing to ImageFile class from if2img program
+
+2.0.0-b2 - 7/07/00
+ Cleaned up SignalFilter class
+ Added zeropad option to pjrec
+ Added zeropad options to html and cgi files
+ Added fourier_table and rfttw filter methods
+ Added FFTW routines to use real/half-complex transformations
+
2.0.0-b1 - 7/05/00
Updated trace level processing
Added trace level to SignalFilter