3 grace related bugs in 1.5.66

[Mats Bengtsson]

Hi,

Here comes an example illustrating three different
bugs in 1.5.66. Not really as graceful as you'd wish.

   /Mats

\score{
  \notes\context Staff \relative c'{
    % Bug 1: No line break if a bar starts with a grace note.
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |
    \grace d8 c4 d e f |

    % Bug 2: What happens with the grace notes here?
    \repeat unfold 10 {\grace d8 c4 d e f}

    % Bug 3: Automatic beaming fails if you have grace notes
    %        on the uneven beats.
    \grace a8 g16 f e f \grace a8 g16 f e f \grace a8 g16 f e f 
        \grace a8 g16 f e f |
  }
}