Add Freepik Basic Application icons

From http://www.flaticon.com/packs/basic-application/
Set tool bar menus for multi-graph panel.
Set chart model.
Set zoom actions.
Data scrolling.
Remove negative axis flag

The same result can be achieved by setting
domainAxis.setInverted(true)
Update tick labels on data.
Add auto zoom range button.
Add tool-tips for tool-bar buttons.
Set selected menu for icon size and text position.
Returns the added charts.
Add text position setter.
Fix Guice method interception.
Remove old chart panel.
Returns the current text position and icon size.

Informs the property change listeners on the change.
Update license headers.