Beaming bug and slur suggestion

[Mats Bengtsson]

Hi, 

When using auto-knee (or manual knees), additional beams end up
on the wrong side, try for example
\score{\notes\relative c'''{
  c16 d e16 g,,,32 b g16 a b \stemDown g''32 g}
\paper{linewidth=-1.0}
}


For slur directions, it seems that as long as at least one 
slurred stem is pointing downwards, the slur will be directed
upwards by default. Why not introduce a mechanism similar to 
the beam directions where you can choose between majority
decision, median or mean center or (maybe) the current version?
As an example, I'd like the first bar to look like the second
one in
\score{\notes\relative c'''{
  \time 3/4
  a16 ( g ) fis g, ( a g ) fis a' (b a g) fis |
  a16 ( g ) fis \slurDown g, ( a g ) fis \slurBoth a' (b a g) fis}
\paper{linewidth=-1.0}
}

  /Mats