Pressing "cancel" erases the contents of "timestamps.txt"

[Cantersoft]

One problem I recently encountered is that for some reason if you hit "cancel" instead of selecting a MIDI, the contents of timestamps.txt get set to blank. This is kinda strange since I don't remember this being an issue before. v0.112 handles this situation, but the Python script still should be updated to place an error message inside the file or something.