incipit in 2.12: some remarks

[Stefan Waler]

Hi all,

there is a new snippet for incipits which saves a lot of work compared 
to earlier versions - thank you for this!

I would like to bring in some remarks about it:

- Something about incipits should be added to the documentation again. 
Currently there is a chapter for it (see 2.8.5) that contains nothing 
but "TBC".

- The incipit function in the snippet sets the style for notes and time 
signature to 'neomensural' but unfortunately not for the rests - which 
are still printed in modern notation. I didn't find out how to set this 
correctly in the snippet function.

- I would be VERY happy if the incipit function could be shipped with 
standard lilypond. I wouldn't want to include this function into all of 
my scores and it would be great to have it out of the box in future 
versions!


Best regards,

Stefan