ng-drag-scroll can't scroll inside an element with scrolling

[Shocoben]

Hi, I've solved the fact that you couldn't scroll inside an element with ng-scroll with this pull-request

Now you simply have to use scroll-element=".element_class" to add scrollable elements

I'm based on the pull request for the touch scroll which is now solved.

:+1:

My pull request : https://github.com/bastbnl/ngDraggable/pull/1 The pull request to solve the scroll on touch devices : https://github.com/fatlinesofcode/ngDraggable/pull/218

[Shocoben]

I also added a new sample page to experiment those features "example-multiple-scrolls.html"

[jeffreyrajanofficial]

@schobbent where to add "use scroll-element=".element_class"". Can you give me an example for that.