Add Scheduler refresh method docs.
Update *Click event reference

Include information about originalEvent and contextmenu handling
Remove trailing whitespace, fix template links
Add a link to the Wiki
Select root-level non-expandable nodes
Fix a typo
Update default values for Barcode/QRCode renderAs setting
Update docs styles - fixes for old browsers
Add base drawing Element configuration
Add Group API reference
Add documentation for OptionsStore
Update Element docs
Inherit Group from Element in the docs
Add Surface base class
Update base class names
Fix return value identation
Add Text API reference. Add IFill and IStroke interfaces.
Link base types and argument types
Link parameters and return types
Add Drawing API illustration