#15: adding Plotter class
#15: adding method to register callback for add button (skelton method)
update doc
Merge branch 'robot-plotter-id-15' into origin-groovy-devel

Conflicts:
	rwt_robot_monitor/doc/DiagnosticsDirectory.html
	rwt_robot_monitor/doc/DiagnosticsDirectory.js.html
	rwt_robot_monitor/doc/DiagnosticsHistory.html
	rwt_robot_monitor/doc/DiagnosticsHistory.js.html
	rwt_robot_monitor/doc/DiagnosticsStatus.html
	rwt_robot_monitor/doc/DiagnosticsStatus.js.html
	rwt_robot_monitor/doc/RWTRobotMonitor.html
	rwt_robot_monitor/doc/RobotMonitor.js.html
	rwt_robot_monitor/doc/index.html