* Documentation/user/refman.itely: remove superfluous -'s

* Documentation/user/refman.itely: remove superfluous -'s

* lily/music.cc: generic compress() function. Remove others.

* lily/parser.yy (gen_text_def): remove support for #'(italic )
style markups.

* lily/parser.yy: all articulations postfix; remove obligatory -
for [,  ) and \!

* lily/music.cc (to_relative_octave): write generic
to_relative_octave function; various relative cleanups.
Hmmm.

* lily/scm-option.cc: add options new-relative and old-relative

* po/sv.po: new po file.

* Documentation/user/refman.itely (Dynamics): website
fixes. (should backport!)