isFunction()

[Aethedor]

I use the jquery.contextMenu plugin, which gives an error:

Uncaught TypeError: m.isFunction is not a function
    at Object.<anonymous> (jquery.contextMenu.js:1:17575)
    at T.each (jquery.js:2:2869)
    at Object.<anonymous> (jquery.contextMenu.js:1:17531)
    at T.each (jquery.js:2:2918)
    at Object.create (jquery.contextMenu.js:1:15226)
    at T.contextMenu (jquery.contextMenu.js:1:23966)
    at HTMLDocument.<anonymous> (file.js:41:4)
    at l (jquery.js:2:24813)
    at c (jquery.js:2:25132)

Seems that the isFunction() function is not working correctly, although your Bootstrap fork should emulate that one for what I could found in the code.