Dissallow intercept of touch events only for childs with scrolling views with the same direction of drag

[MartinRajniak]

In the end it seems only reasonable to not intercept touch events other then those that originated in the bottom bar area.

So now the behaviour is the same as in Google Music App. When list view is supplied as one of the children it will take the touch event, but if no child will take up the touch event, then the drag will be possible also on non bottom bar region.

This still needs some work to be done, because as it is now, if any child will take the touch event, then drag on that child won't be possible. What we want to accomplish is to dissallow drag only on scroller child views.