Fix double-tap bug when clicking prev/next buttons
Fix double-tap bug when clicking prev/next buttons

Because we're using the mouseup() event to select the prev/next buttons, we need to clear out the time the last mouseup() event fired, or else we end up causing a double-tap and selecting the strip if we click next or prev too quickly.

eb1/adapt-it-mobile,adapt-it/adapt-it-mobile,adapt-it/adapt-it-mobile,eb1/adapt-it-mobile,adapt-it/adapt-it-mobile,eb1/adapt-it-mobile