Change redo shortcut from ctrl-r to ctrl-y
Ctrl-y is more standard and used in many applications, ctrl-r is used pretty much nowhere.
Merge pull request #1028 from diizy/stable-1.1

Change redo shortcut from ctrl-r to ctrl-y
AFP improvements
- Stop pointlessly reloading the sample everytime the amp knob is changed
- Also draw the amplitude of the waveform correctly (used to be it was drawn as 2x too "quiet")
Merge pull request #1029 from diizy/stable-1.1

AFP improvements
Merge pull request #1030 from LMMS/stable-1.1

sync