Internal - altering how a draw is called

- Previously the master sort and filter functions would perform a draw,
  but this was a bit redundant, complex and didn't allow multiple
  changes to be queued up before a new draw was performed. The new API
  will allow this ability, so we need to allow it in the core as well.
  You can now do a sort, and it will be performed internally, but not
  actually drawn until the redraw function is called. This makes a full
  redraw much simpiler, and has the benefit that a standing redraw is
  now relatively trivial since it is all performed in a single place.
New: Add ability to do a static redraw to the new API

- draw() and ajax.reload() can now have `false` passed as their first
  (and currently only) parameter, which instructs DataTables to do a
  'static' redraw (i.e. not to reset the pagination).