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Changes since v10.02c
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Global changes ---

  Updated LCreal datatype consistency across the entire framework so that
  LCreal can be defined as either float or double

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EDL/EPP changes ---


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General changes ---

basic:

basicGL:
   GlutDisplay class
      1) createSubWindow() now calls the function configureIt() for each window.

dis:
   Nib class
      1) emitterBeamsManager() -- modified to call all of the entity's emission
         handlers each frame.  Previously only did one per frame.

   NetIo class
      1) added the virtual member function processUserPDU(), which allows users
         to process PDUs that are not handled by the default PDU handlers.
      2) netInputHander() -- modified to save time; the PDU type and exercise
         numbers are checked without swapping the PDU header's bytes.

simulation:

   ScanGimbal class
      1) changed 'int' variables to 'unsigned int'
      2) getRefPosition() now returns a reference to a osg::Vec2d
      3) changed 'ScanMode' to 'unsigned int' and added 'USER_MODES' to allow
         users to extend the enumerated scan modes with their own modes.
      4) added the virtual member function userModesScanController(), which
         allows users to add controllers for user defined scan modes.
      5) Added several new protected get and set functions to allow user
         defined scan controllers access to the data.

   Steerpoint class
      1) copyData() bug fix with 'haveCmdAs'
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