Manual feature-complete

[Graham Percival]

As far as I know, the LilyPond manual is basically ready for a stable 
release.  It is currently missing:
- info about the new user-friendly midi tempo.
- anything about Joe's page breaking stuff.
- anything that gets added to the NEWS file after today.

I'm not planning on doing any major work on the manual for the next two 
or three months; I'm going to concentrate on bug reports.  I'll still 
process doc suggestions, and of course add any other NEWS info before 
the next stable release.

When 2.9.17 comes out, please glance at the docs.  If I don't hear any 
complaints within a week of the web docs being updated, I'll assume that 
the chapter titles are good and rename the .itely files.  This will lose 
the CVS logs for that chapter, but due to renaming the chapters, some of 
the filenames are really weird.  ("Spacing issues" = "page.itely", 
"Non-musical notation" = "global.itely", etc -- this sometimes confuses 
me, and it must be horrible for anybody else trying to edit doc source 
files)

Cheers,
- Graham