+ * ctsim: Added tips to be displayed at startup and via the help menu.
+
+ * ctsim: Added center-detector concept. Allow for detector array
+ to be any arbitrary distance from center of scanner. As a result,
+ projection files are not incompatible with previous version of
+ CTSim.
+
+ * ctsim: Added generic threaded tasks and background manager for
+ background processing as well as taking advantage of multiple-CPU's
+ on SMP systems.
+
+ * ctsim: Added PPM/PGM and PNG file import to imagefile.
+
+ * ctsim: Added import of DICOM grayscale files.
+
+ * ctsim: Added imagefile export to DICOM files.
+
+ * ctsim: Added plot t-theta sampling to projection file menu.
+
+ * ctsim: Added background and SMP processing for reconstructions.
+
+ * ctsim: Added background and SMP processing for scanning.
+
+ * ctsim: Added background and SMP processing for rasterization.