Release 0.87 - Smooth move

This new release is great because: - It fixes a bug when using the 'soften selection' feature (deadock) - It adds a Bezier approximation when drawing with the brush When you draw fast, especially with a tablet, often you don't get enough points to draw a smooth curve. Now the app automatically smoothes the line based on your movement. This image illustrates the change (note that of course this is not the same line drawn here, it just shows the difference between the previous version and the new one with a similar stroke): PS: If you saw a release 0.86 for a few minutes, please update again. It's the same with a log of debug information printed in the console. 0.87 fixes this.