Normalize Spline

Launch the script.
Select an editable spline or line and apply the modifier "Normalize Spl. 2"
Change the parameters as you like.
If you want to reset the modifications, just click the button "reset spl.".

All the parameters are saved in the object properties -> "user defined".
If you modify the spline and delete the modifier, the spline will stay
to its current state. To reset after deleting, apply again the modifier
and click the button "reset spl.".
So, important : never delete or change manually the "user defined properties".

To load automatically the script at startup, copy it in the following folder :
C:\Users\[your name]\AppData\Local\Autodesk\3dsMax\2012 - 64bit\enu\scripts\startup
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v1.4:
-Like the version 1.3 but in the modifier list.
-Record properties of each spline object in its user defined properties.
-The "Optimization" is corrected to always keep the first and last point.
-You cannot disable the modifier (click "reset spl." to get the initial state)
-This scripted plug-in is not animatable.

v1.5:
-When normalizing, now it always keeps the last point and give a correct number of segments.
-In "Optimization", change the default parameter to "Keep < 180°"

v1.6:
-Works with 3ds Max 2013
-Corrected an issue with closed splines

v1.7:
-Corrected a small issue with the "close spline" check box
-Added a button "Bake spl. state" that will copy the spline state in the user properties

v1.7.1:
-Corrected a bug with "relative to total spl. length" check box when the number
of segments was too low to close one of the splines.