August 22, 2012
  Changed all client-facing C data structures to Objective-C classes.  This was driven by the realization
  that one of the data structures contained object references which resulted in QSICamera being incompatible
  with ARC-based software.  With this release QSICamera should seamlessly operate with manual reference
  counting, garbage-collected and ARC-based software.
  
  Added the QSICamera class method 'simulatedCameras'.  This method returns an array of cameras which, while
  not allowing soup-to-nuts testing of QSICamera, allows testing of its higher-level functionality.  More
  usefully, these simulated cameras allow the development of applications incorporating QSICamera without
  requiring the actual connection of a camera from QSI.  Of course, you will want to test anything you develop
  against real cameras.

August 15, 2012
  Corrected issues identified via running Xcode's static analysis tool.

  Added a new class (QSICameraDefaults) interfacing with the Cocoa NSUserDefaults system.
  Multiple cameras are supported via this system by identifying the specific camera's settings
  based on the combination of its model and serial numbers.

  Implemented automatic persistence of the following settings whenever they are explicitly (i.e., not by performing an
  exposure) modified via the QSICamera API:

	* anti-blooming
	* cooler state
	* cooler set point
	* fan mode
	* camera gain
	* LED alert setting
	* pre-exposure flushing
	* readout speed
	* shutter priority
	* sound alert setting

February 26, 2012
  Corrected problems related to 600-series camera support.

  Moved public methods of QSICamera to a QSICamera protocol.

October 27, 2011
  Version 6.0.3 of the software and documentation.
    The version number now reflects the version of the QSI software from which this code
      was created.  This doesn't mean it has all the same functionality but that particular
      changes (such as default values) are consistent with that software.

    Removed ability, per-QSI's request, to set auto-zero control parameters.  According to
      QSI these are not values that an end-user should be changing.

    Added support for 600-series cameras.

    Added trim adjustment field to QSIFilter.

November 23, 2010
  Version 1.0.1 of the software and documentation.

  Added -autoZeroControl: method to QSICamera for querying the current values of the auto-zero
    control parameters.

  Fixed bug in -exposeUsingRequest: where QSINoFilter was not being ignored.

  Corrected documentation to state that the starting column and rows of the image are in column
    binning and row binning units.

November 12, 2010
  Version 1.0.0 of the software and documentation.

