* 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 background and SMP processing for reconstructions.
* ctsim: Added background and SMP processing for scanning.