Eliminate repeatedly fired `rangechanged` events on mousewheel (#2989)
Eliminate repeatedly fired `rangechanged` events on mousewheel (#2989)

* Fix redraw order

* Fix error when option is not defined

* Allow template labels

* Add .travis.yml file

* Add experiment travis code

* Fix react example

* Add pausing of rangechanged in scroll

yotamberk/vis,yotamberk/vis