v1.5

• Add method for retrieving the volume utilisation of a packed box.
• Previously, when encountering an item that would not fit in the current box under evaluation, the algorithm would declare the box full and open a new one. Now it will continue to pack any remaining smaller items into the current box before moving on.
• Boxes and items with large volumes were sometimes not sorted properly because of issues with integer overflow inside SplMinHeap. This could lead to suboptimal results. [IBBoard]