Global events are firing on add/remove links pre-/post-execution
Added namespace, updated readme, bumped version
reworked callback parameters to contain the object

$(document).bind( [EVENT],function(){} ) where EVENT is:
fields_adding.nested_form_fields -> fires before new fields are added
fields_added.nested_form_fields -> fires after new fields are added
fields_removing.nested_form_fields -> fires before fields are removed
fields_removed.nested_form_fields -> fires after fields are removed