Limit note number to prevent crash

Note values that are too high end up crashing the player, so limit them
at 149. See 6nations.it for an example of problematic module. Reported by
Bastian Pflieger.

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Update changelog

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>