Bug when zooming

[ascsanto]

There is this bug that when zooming in and out the focus is not centered on the mouse cursor, this is not a big problem until the mindmap becomes big enough that it is necessary to zoom out up to 10%-20% (to orient and see the bigger picture), and when doing this the visible part of the mindmap gets so far away from the canvas that it is impossible to retreive the desired point of view, and i have everytime to do Ctrl+E to recenter the point of view (and sometimes it doesn't even work)