* scm/define-grobs.scm:

* scm/define-grobs.scm:
separation-items have width

* VERSION:
bump version

* .gitignore:
* Documentation/topdocs/NEWS.tely:
* lily/separating-group-spanner.cc:
* lily/slur-engraver.cc:
* lily/slur-scoring.cc:
* scm/define-grobs.scm:
* input/regression/slur-clef.ly:
add breakableSeparationItem to extra encompass for slurs. This fixesslur/clef slur/key collisions etc. Should fix #49

* lily/include/slur-scoring.hh:
* lily/slur-scoring.cc:
Use X of separation item as slur start. Fixes #120