Fixed PropTypes deprecation of React 15.5

[oriSomething]

• Moreover, fixed small linting issue of defaultMatches not having propType

[mjackson]

Why did you remove || ^0.14.7?

[oriSomething]

Since if someone uses react 14.x he probably don't install the new prop-types package which is needed with the new React.
I preferred not to do something like:

let PropTypes;
try {
  PropTypes = require("prop-types");
} catch(e) {
  PropTypes = require("react").PropTypes;
}

[danhayden]

Based on the prop-types readme it looks like prop-types should be a dependency and not a peer dependency and it is compatible with React 14 back to [email protected] and React 15 back to [email protected] therefore the react peer dependency could be "react": ">=15.3.0 || ^0.14.9"

[mjackson]

Peer dependencies should be kept as loose as possible to make it easy for people using different versions. Let's use >=15 here, same as react.

[oriSomething]

I've copy pasted since Github put it on "outdated":

Since if someone uses react 14.x he probably don't install the new prop-types package which is needed with the new React.
I preferred not to do something like:

let PropTypes;
try {
  PropTypes = require("prop-types");
} catch(e) {
  PropTypes = require("react").PropTypes;
}

[oriSomething]

@mjackson Is the changes are okay? Is anymore thing to be done?

[deiucanta]

@mjackson can you please merge this? it's really annoying to see the warning error from react :)

[mjackson]

This was fixed in #66