refactor(Formsy): Use arrow functions instead of manual bind (#44)

* Switch index.js to arrow function binding
* Upgrade all dependencies
* Update build files
* Fix eslint

Author: rkuykendall

lib/Wrapper.js

@@ -29,6 +29,8 @@ function _possibleConstructorReturn(self, call) { if (!self) { throw new Referen
 
 function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
+/* eslint-disable react/default-props-match-prop-types */
+
 var convertValidationsToObject = function convertValidationsToObject(validations) {
   if (typeof validations === 'string') {
     return validations.split(/,(?![^{[]*[}\]])/g).reduce(function (validationsAccumulator, validation) {