Version 0.4.0 :
 
* Core
  * Faster engine
  * Possibility of seam step > 1
  * More precision for rigidity value

* Interface
  * Autosize button for object deletion
  * Optionally scale (or LqRescale) back to
    the original size
  * Rescale order option

Version 0.3.0 :

* Core
  * Faster engine
  * Different use of preserve/discard layers
  * Works on floating selections
  * Rigidity introduced to control the seams

* Interface
  * New interface with notebook (thanks Alexandre!)
  * Output to new layer option
  * Output seams option
  * Refresh button
  * Create new layer button
  * More sensible strength scale
  * Added tooltips

