[PATCH]: Parenthesize markup

[Carl Sorensen]

Thomas Morgan submitted this patch last July as part of his chord-name work.

http://thread.gmane.org/gmane.comp.gnu.lilypond.devel/22784

It got the provisional OK but never got resubmitted as a single patch,
instead of a series of patches.

We're trying to get the chord-name code finished off.

Please review this patch on Rietveld:

http://codereview.appspot.com/183101

Thanks,

Carl