Added a simple search example.

Updated web_driver, use the API as delegation instead of inheritance.
Updated web_element class.

library/test/selenium/examples/application.e

@@ -17,11 +17,16 @@ feature {NONE} -- Initialization
 	make
 			-- Run application.
 		do
-			execute_example1
+			execute_search
 		end
 
 	execute_example1
 		do
 			(create {EXAMPLE_1}).test
 		end
+
+	execute_search
+		do
+			(create {EXAMPLE_SEARCH}).search
+		end
 end