clarification about midi

[James Lowe]

Hello,

I'm just scanning through the input.itely file in the notation section of the 
doc and there are are few @todos that I may be able to help clear up with the 
recent discussions/changes about midi that have gone on as it will be fresh in 
the minds of the relevant devs.

For example, can I get rid of this whole @ignore section that says:

------snip-----

@knownissues

@c In 2.11 the following no longer seems to be a problem -td
@ignore
Unterminated (de)crescendos will not render properly in the midi file,
resulting in silent passages of music.  The workaround is to explicitly
terminate the (de)crescendo.  For example,

@example
@{ a4\< b c d\f @}
@end example

@noindent
will not work properly but

@example
@{ a4\< b c d\!\f @}
@end example

@noindent
will.
@end ignore

-----

James.