Include and document the Articulate script by Peter Chubb. (issue4277067)

[percival . music . ca]

Looks generally good to me.


http://codereview.appspot.com/4277067/diff/1/Documentation/notation/input.itely
File Documentation/notation/input.itely (right):

http://codereview.appspot.com/4277067/diff/1/Documentation/notation/input.itely#newcode1690
Documentation/notation/input.itely:1690: more realistic MIDI output is
available by means of the Articulate
could "the Articulate script" be a @ref{} ?

http://codereview.appspot.com/4277067/diff/1/Documentation/notation/input.itely#newcode2307
Documentation/notation/input.itely:2307: @unnumberedsubsubsec Using the
Articulate script
IMO, the @unnumberedsubsubsec doesn't add anything.  I suggest omitting
this line entirely.

If you really really want that line there for some reason, then please
add a @node right above it, to match the doc policy.

http://codereview.appspot.com/4277067/diff/1/Documentation/notation/input.itely#newcode2316
Documentation/notation/input.itely:2316: and in the @code{\score}
section do
I do not believe that you "have to" include the \unfoldRepeats section.
Could you just change this to:

To create a MIDI file with all repeats played, add this to your \score:

http://codereview.appspot.com/4277067/