Remove lodash dep about victory

[knowbody]

these might be good resources for this issue:

• https://www.reindex.io/blog/you-might-not-need-underscore/
• http://blog.xebia.com/you-might-not-need-lodash-in-your-es2015-project/

Have in mind that if we use Object.assign we need to add babel-polyfill to the builder config (if it's not there already).

[boygirl]

@ryan-roemer is philosophically opposed to shipping polyfills last time I checked.

[ryan-roemer]

Libraries should never mutate your application merely from inclusion. So don't implement polyfills.

But requiring them is perfectly fine as long as it's well-documented. And maybe it makes sense throw an exception if they're not present in development mode.

[ryan-roemer]

And in your application server you absolutely should be doing polyfills. Just a single lib or component should respect and not change the environment in which it is used.

[ryan-roemer]

Last thought - non mutating ponyfills (not polyfills) are ok too, but be careful with interaction with real polyfills in apps

[knowbody]

I've just seen this: https://github.com/cht8687/You-Dont-Need-Lodash-Underscore
might be useful, so leaving this here.