NoteLab 0.1rc3 Released

NoteLab 0.1rc3 has been released. This release fixes a memory leak in the undo-redo system. As such the system now only stores the last 25 actions done by the user. If no such limit was set, the undo-redo system would, over time, use more and more of NoteLab's memory, decreasing performance. Thus the limit was placed to maintain the performance of NoteLab in general. In addition, 25 actions seems to be good for most needs.