Merge branch 'master' of carldsorensen@git.sv.gnu.org:/srv/git/lilypond

diff --cc Documentation/user/rhythms.itely
index 22d86d69c7ce1f85d04b91b05eac816cd68819fc,c5eeb57a23538b203064aebefd555172e613e666..11b06392341981571c0d08ee723ca25b70e88c49
--- 1/Documentation/user/rhythms.itely
--- 2/Documentation/user/rhythms.itely
+++ b/Documentation/user/rhythms.itely
@@@ -1005,8 -1011,14 +1005,8 @@@ Internals Reference
  @rinternals{Timing_translator}.
  
  
 -@knownissues
 -
 -Automatic beaming does not use the measure grouping specified with
 -@code{set-time-signature}.
 -
 -
  @node Upbeats
- @subsubsection Upbeats
+ @unnumberedsubsubsec Upbeats
  
  @cindex anacrusis
  @cindex upbeat