[seq24-users] [patch] resize events (req. for approval)

[<seq...@li...>]

I made some tweaking on sequence.cpp

basically I needed a stretch function, because I don't like playing 
keyboard following a metronome, so I have to record some "freestyle" 
notes and then stretch to the song tempo.

since I have no idea on how to implement this as a NEW function, i 
hacked the old sequence::grow_selected() function.

compiling with -DMIDDLEBTN_RESIZE_EVENTS should activate this hack

i hope could be usefoul to someone else, and that will be some way 
inserted in the official release

happy sequencing ;)
-- 
ciao
Federico