Bugfix: auto-switch triggered on quick release of custom shortcut

[elig0n]

The above else clause causes Switcheroo to auto-switch on a too quickly released custom shortcut (i.e: Alt+~). It should only be applicable for alt+tab when the setting for alt+tab auto-switch on quick release is on.

But is it even needed? commenting it out doesn't seem to affect expected functioning.

Fixes #120

[milnak]

FYI, I integrated this change into my fork