PR for "Use 'prop-types' instead of React.proptypes #499"

[M-ZubairAhmed]

Reference issue

This pull request is response to issue#499.

Raised issues

Migrate to new package prop-types from React.PropTypes.

Work done

• Added prop-types package to the dependency.
• Imported proptypes from that package instead of React for all the occurrences.
  • import React, { Component, PropTypes } from 'react'
    to
  • import PropTypes from 'prop-types'
• Ran grep search across all the js files of the project to check if any import is left unchanged.

Results

• Clean build and running
• Although all files inside the app doesnt not depend for proptypes on react but few of the 3rd party dependencies (96 .js files) does import from React.PropTypes. Hence browser console still shows the warning.
  

[skellock]

Thank you for your hard work!