Added new version of i-css

[roman-orlovskiy]

Hello, i updated my module with some your remarks.

[coveralls]

Coverage remained the same at 98.168% when pulling c9c959df96334016eae92847c783288f3f1b19e5 on irom-io:patch-1 into b527f3c55a2b8d2bc6e3fe7ce08e60b7b7c4d0d8 on blakeembrey:master.

[coveralls]

Coverage increased (+0.03%) to 98.195% when pulling c0242c8b4f316cbadeb4816957f547afaf898809 on irom-io:patch-1 into b527f3c55a2b8d2bc6e3fe7ce08e60b7b7c4d0d8 on blakeembrey:master.

[blakeembrey]

Sorry for the delay, took a holiday and spent some extra time on break. Unfortunately there's still 2000 more issues for me to tackle, but I'm getting back slowly 😄

I fixed up the grammar slightly and will merge. Just a note though, you could have just updated the previous PR and pinged me - there's no need to open more than one PR per feature/issue. From the other thread (https://github.com/blakeembrey/free-style/pull/59):

• Prop types is a valid concern, I've been relying on TypeScript and the language services from it too much so didn't think about that - I could copy the propTypes across components to support this in react-free-style
• On props.styles, it depends again how you're getting these hints. If it's TypeScript types, you should be able to annotate it, but definitely a valid issue - unfortunately it's the only proper way to do it, react-free-style is heavily designed for React projects so it binds to componentWillMount - this way server side rendered applications receive the smallest possible CSS footprint for what's on page
• The separate files don't really have any impact on react-free-style - I've built many applications with a styles/*.js set up and copying styles across to components like you suggest
• The note about slow calling is that Function#bind is incredibly slow and the way you were using it should be using Function#call instead. You're still doing it too - please consider switching to Function#call instead of bind. E.g. do style = style.call(styles) instead of style.bind(styles)().

As an aside, there's a more performant way to change styles now too - you can use "change" events from free-style to interact directly with a style sheet instance. Check out https://github.com/blakeembrey/react-free-style/blob/2aebdc92baa6193820b547d292b690ec5ab751f6/src/react-free-style.ts#L51-L60 to get an idea of how that would work.