Keyboard shortcut to enter grace note does not work

Ubuntu 14.04, GIT commit: 03dc014

1) select a note
2) press "/" (shrotcut to add acciaccatura)

Result: nothing; "unknown command" output to console

I guess it just isn't implemented. If it's easy, I'll do it, otherwise, I will remove it from shortcut list.

BTW, I also plan to make entering grace notes easier by allow you to double click palette icon several times in a row without requiring you to select main note each time.