* added JSDocs for almost all extensions
* start adding commands jsdocs
* add jsdocs for rest of extensions
* add jsdocs for Extensions
* add js docs for all extensions
* add more jsdocs
* add js docs for node spec definitions
* add new addOptions option
* replace defaultOptions with addOptions for all extensions
* replace defaultOptions with addOptions for all demos
* replace defaultOptions with addOptions in docs
* refactoring
* refactoring
* drop object support for addOptions
* fix optional options
* fix tests