Integrating the ClickableDetectorPlugin into Crawljax

Crawljax detects whether the ClickableDetectorPlugin is present or not and if so, it extracts all the clickables with the "data-cj-clickable" attribute set to 'true'. If the user also wants to define elements himself, it is also possible and all the elements that match the element determined by the user will be extracted from the list of candidate elements.