Fixes: https://github.com/almende/vis/issues/2490

* Fix redraw order

* Fix error when option is not defined

When I was going through the documentation about creating custom builds
I ran into the error outlined at the below link. Applying the suggested
fix solved it so I'm submitting same here.

http://stackoverflow.com/questions/30386317/babelify-throws-parseerror-o
n-import-a-module-from-node-modules

See https://github.com/almende/vis/pull/2460

* Fix redraw order

* Fix initial drag item bug

* Fix indents

* Fix redraw order

* Add initial itemVisibleFrame

* Add visibleFrameTemplate option

* Improve example

* Rename and fix example

* Fix comments from PR

* Fix example

* Add initial support for rolling mode
* Add rollingModeBtn and simplify example
* Make icon in css:
* Remove icon btn
* Add docs
* Fix zoom in rolling mode and initial start/end times

* Fix redraw order
* Fix calling dragStart mote than once

* Fix redraw order
* Fix IE10 support for dnd

* Fix redraw order
* Add elements censor and event to emitter
* Fix all recursive loop in json event
* Add docs for event emitted

added code-climate checks for develop branch

* Add support to fixed times drag and drop
* Fix IE support for drag and drop
* Add support to IE pointer location and data setting/getting

removed trailing spaces

removed merge-stream

* Fix groupEditable
* Fix group drag in vertical direction bug
* Fix indentation

* Multifont node and edge labels
* adjust documentation
* rework mod-font property inheritance
* Node max/min widths, min heights; Edge max widths
* Accumulate sizes correctly for unconstrained multipoint labels
* handle font.multi when groupOptions.font is not declared
* propagate label fonts on changes, not just creation
* Allow top-level constraint numbers
* accumulate width and empty lines appropriately

* add pointer position to zoom event
* Update docs with zoom api

* Fix mouse zoom on currentTime
* Fix customTime mousewheel bug

* Fix left/right group alignment
* Add _setDOM and remove scrollbar when there is no scrolling
* Readd calculation of scrollbar width on resize

Readied 3d camera orientation code for merge into develop branch

* fixed label disappearing bug for large axis values in Graph3d
* only fixed label disappearing bug for large axis values in Graph3d
* very only fixed label disappearing bug for large axis values in Graph3d

* { manipulation: { editEdge: { editWithoutDrag: function } } } edits an edge without dragging.
* An example of editing network edges without dragging, enabling label creation / change

* Fix brackets problem
* Fix timeStep.getClassName

* Add hidden groups height calculations
* Fix jittering groups
* Remove non-existant parameter
* Cleanup example
* Remove console.log

* Added group option to change the visibility of a group
* updated the groupsEditable example page to demo the use of this feature
* updated the timeline documentation to describe this option