release: 1.3.83

release: 1.3.83

======

* small doc updates.

* Cleanups related to barline handling:

  - Removed Translator_group::get_simple_translator (), and -

  - use properties to communicate about barlines and time sigs. (NOTE:
    by default a time-signature of 4/4 is printed.)

  - fix repeat bar behavior.

* cleaned up Directional_element_interface

* add name field to score-elements.

* comment in some unprotects for Music in parser. Should bring down
  cpu time and plug some leaks.

* robustness fixes for etf2ly, tuplets, grace notes.

1.3