Allow releasing mouse anywhere to stop bracket dragging

We can do this now since the bracket is now clamped inside it's area,
so releasing the mouse outside of it won't hide the bracket

js/client-tournament.js

@@ -59,8 +59,6 @@
 			innerX = e.pageX - this.offsetLeft;
 			innerY = e.pageY - this.offsetTop;
 			isMouseDown = true;
-		}).on('mouseup', function () {
-			isMouseDown = false;
 		});
 
 		$(document).on('mousemove', function (e) {
@@ -74,6 +72,8 @@
 					top: position.top
 				});
 			}
+		}).on('mouseup', function () {
+			isMouseDown = false;
 		});
 	}