You can now SHIFT-click up to 50 items at once. Select an item, and then SHIFT-click another item and it'll select all items in between them. It works similarly to doing it with files on your desktop. If you CTRL-click another item, it'll become the next starting point for the SHIFT-select.

Also fixed a small crash on exit.

P.S. if you start dragging right after you SHIFT-click something, it'll immediately start dragging all of your current selections. Otherwise, you can just CTRL-click as normal.