toggleClass throws "is not a function"

[typeoneerror]

Version of Dropkick:

Version on http://dropkickjs.com/

Expected Behavior

Multi-select should select items.

Actual Behavior

Doesn't select, throws errors.

Uncaught TypeError: [((intermediate value)(intermediate value)(intermediate value) + "Class")] is not a function
    at Object.toggleClass (VM550 dropkick.js:1)
    at e.value (VM550 dropkick.js:1)
    at e.value (VM550 dropkick.js:1)
    at e.value (VM550 dropkick.js:1)

Steps To Reproduce:

1. Click any item in multi-select example

JSBin / Example repo / Failing test:

Pretty sure https://github.com/Robdel12/DropKick/blob/master/src/utils.js#L24 should be called on this.

[typeoneerror]

Failing test and experimental fix: #361

[Robdel12]

This was closed with #361. Thanks @typeoneerror for the report AND the fix! :D