+1.9.9 - 7/04/00
+ Fixed const issue with ImageFileArray
+ Fixed Array2dFile::labelsCopy()
+ Added copy constructor and assignment for Array2dFileLabel class
+ Added Timer to if-2.cpp and ifinfo.cpp
+ Added beginning of frequency-based (DFT & FFT) filter to SignalFilter
+ Fixed format string for EZPlot
+
1.9.8 - 6/27/2000
Rewrote Array2dFile class to be non-templated
Rewrote Array2dFile class to make reads and writes atomic. No disk files are kept open.
Rewrote Array2dFileLabel class to make members private, added access routines
Removed timedate.cpp in favor of standard C library time/date functions
- Renamed ctrec to pjrec
+ Renamed ctrec to pjrec, sample-ctrec.sh to sample-ctsim
+ Added signature tag and creation date/time to projection files
1.9.7 - 6/25/2000
Standardized string option processing by classes. All classes use character strings