0.2.4

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o Exporter
  - Add animation export.
  
o Importer
  - Add option to ignore UPB buffers.  
    * Useful in preventing LOD Bone warnings from the Civ4 Exporter
  - Fixed problem with Animation Note Tracks not being cleared
  - Fixed issue with BSpline animation when too much data was present
    * Specifically the Civ4 Leaderheads now import animation very well
  - Import Animation Priority into user prop buffer
    
o NifProps Utility
  - Added Animation Priority
  - Removed unused Globals