New SashLayout container has landed in e(fx)clipse

I just pushed a new layout-container who has a similar feature set than the JavaFX built-in SplitPane but ensures that proportions are not corrupted if you shrink the container (just watch the video below to get an idea what I mean). Watch on YouTube The layout algorithm is not something I came up myself. I just reworked the one from SWT to be used in JavaFX.