Some code cleanup and consolidation.

* Add initial scroller without options
* Add initial scroll without an option
* Add verticalScroll option
* Fix scrollbar positions
* Add docs
* fix example
* remove jquery dependency
* Fix example
* Fix review comments

* Graph3d: make setting dotSizeRatio public
* Added method for dotSize
* Fixed silly indent

* Hide vertically hidden ranged items in groups that are not visible
* Add vertical scroll when zoom is inactive
* Fix review comments
* Add horizontalScroll option

* Hide vertically hidden ranged items in groups that are not visible
* Add vertical scroll when zoom is inactive
* Fix review comments

Final cleanup for settings handling

* Updates all 'remove' events in DataSet and DataView to include the objects that were removed in addition to the the ids.
* Updated the documentation to reflect changes.
* Fixed possible object mutation when typeof id is object in DataSet.remove.

Common handling for settings with prefix 'default'

Add Italian locale support for timeline

Graph3d: Added fields with special handling to default settings.

added all locals to manipulation example

Thanks @federicoco for providing the translation!

linked user profiles in help files

* removed reference to the style-guide
* added a how-to-help; added a document describing the current maintainer status; fixes #2170; closes #1781
* listing the members of the support team
* use search before creating a new issue
* fixes typos

Added structure for default values

Replaced sin/cos usage in drawAxis() with unit vector

Adds oldData to the update event payload in dataview to match dataset.

Added methods for drawing Y and Z axis labels

Consolidated code for drawing x-axis label