Title:
  Merging import lists
Goal: 
  Merges the import lists, adds the new items to the new one and refreshes its
  function calls.
Parameters:
  [{file,"test.erl"},{position,79}].
Documentation:
  The transformation merges the import lists of the selected module, adds the
  list of functions that are called with a module qualifier to this list and
  removes the module qualifiers from the corresponding function calls. The 
  function that is used only as implicit function will not be imported.
