use lodash find() instead of Array.prototype.find

[kketch]

When i upgraded to from Karma 0.12.x to 0.13.3, my karma setup stopped working.

file-list.js uses ES6 Array.prototype.find which of course fails with TypeError: undefined is not a function in normal node installations (without the harmony flag).

Replacing Array.prototype.find() with lodash.find() (which is already used in other places in file-list.js) seems to fix the issue.

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[dignifiedquire]

Thanks, could you change the commit message to follow our convention please?

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[kketch]

fixed the commit message

[dignifiedquire]

Thanks

[dignifiedquire]

Released in v0.13.5