+ * 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 threaded tasks and background manager for
+ background processing as well as taking advantage of multiple-CPU's
+ on SMP systems. (Microsoft Windows only)
+ * ctsim: Added plot t-theta sampling to projection file menu.