Update dropkick.js

[vreshch]

Some mobiles gets confused on refresh call

[Robdel12]

Can you write a test proving the bug and that this fixes it?

Edit: didn't mean to close it..

[Robdel12]

window.isMobile && opts && !opts.mobile

[spoonben]

I've actually also seen this, I'll try writing the test to prove it.

Actually, it would be better to add opts = opts || {} on line 26. I'll make a PR for that.

[wwilsman]

Could you explain why it would be better? As I see it, besides that if statement, opts is only ever really passed onto the init method, which handles it appropriately. It'd be redundant to have both this.opts and this.data.settings (which also holds other data as well).

[spoonben]

@wwilsman, thought this was a better way to test #266, also I don't think it is redundant since settings is extending opts https://github.com/Robdel12/DropKick/blob/master/dropkick.js#L259