Merge pull request #65 from zolaemil/timesig

improving scoreDef attribute handling
consider staff/@n for ties
Read from key.sig, if possible
Merge commit 'ea01b00182395ba54d32b9455fe14695d73cde2d'

* commit 'ea01b00182395ba54d32b9455fe14695d73cde2d':
  consider staff/@n for ties
  Slicing staffInfo parameters only effect first scoreDef
  another test for staffInfo behaviour
  added test and fixed missing update of scoreDef object
  [DH] Fix for time signature setting from scoreDef
Merge branch 'master' of https://github.com/mjwalter/MEItoVexFlow

* 'master' of https://github.com/mjwalter/MEItoVexFlow:
  Removed buggy repetition of same name…this branch should be good now
  Annotations (including performance directions) should not be italic; they are in roman script above the staff. Expressions, on the other hand, are indeed italic and are placed below the staff. I've added the new style to distinguish between the two.