IanniX 0.9.11 RC1

- rare bug with file saving fixed (not reproducible and not enough info
on bug — so fixed in theory)
- bug with abusive triggering while looping on a curve fixed
- new "factor of elasticity" parameter on curves (made with points -
not equations or circles -) making the curve "elastic" while moving
points
- new "Save As" and "Close" menus