Map jumps to new center position when double-clicked

[perqa]

In the left-hand example (bicycle map, etc) on http://tombatossals.github.io/angular-leaflet-directive/#!/, if I double-click a point int the map, it will zoom, as expected, but it will also jump to a new location - outside the original map frame (usually north, it seems).

[tombatossals]

Can't notice this behaviour now, it must has been solved in a previous commit. Please reopen if needed. Thanks