Update to lodash 4.5.1

[petercyr]

Lodash is wayyy out of date here and its causing issues with deep comparison of relatively simple objects.

• Update lodash to 4.5.1
• Fix two references to include which is now includes.
• Fix output of objects on failed deepEquals

npm test

> goinstant-assert@1.1.3 test /Users/pcyr/repos/assert
> mocha test/test.js


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109 tests complete (23 ms)

@colinmacdonald

[colinmacdonald]

if the tests pass LGTM

[petercyr]

@bendecoste can you take a look? looks like you committed the last changes for this, so just want to make sure you agree with this so it doesn't break everything i'm not aware of.

[jeffandersen]

👍