[LAD] Yoshimi V 1.5.9

[Will Godfrey]

Apart from the new list of helpers, there is little visible change for most
users, but the command line has now been greatly extended.

Full details are in doc/Yoshimi_1.5.9_features.txt

Also, there have been significant changes in the underlying code. These were
always planned, but maybe not reported and explained as well as they could have
been.

More info is in dev_notes/Selection_Structure.txt

-- 
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.