Made it possible to use the elfinder widget multiple times in one page/form by including the ID of the element in the jQuery selector. This will make sure that only the selected element is updated and not all elfinder instances.
updated the setValue and click handler functions in elfinder_type to include the instance id. Also updated the Controller to pass the id to the elfinder_widget so it can execute the setValue function with the right id. 
setValue should still work when no id is passed.
added formTypeId argument to selectEditor method.
injected Request object directly into action
Merge pull request #75 from gl005/master

Multiple elfinder instances in one page/form