use default react imports

dist/reactComponents/Radio.d.ts

@@ -25,8 +25,8 @@ export declare class Radio extends React.Component<{
     render(): JSX.Element;
 }
 interface iRadioConnectedOpt {
-    inline?: boolean;
-    classes?: string[];
+    inline: boolean;
+    classes: string[];
 }
 interface iRadioConnected extends iRadioConnectedOpt {
     title: string;

dist/reactComponents/Slider.d.ts

@@ -3,10 +3,10 @@
  */
 import React = require("react");
 export interface iSliderOpt {
-    steps?: number;
-    animate?: boolean;
-    defaultAnimationInterval?: number;
-    value?: number;
+    steps: number;
+    animate: boolean;
+    defaultAnimationInterval: number;
+    value: number;
 }
 export interface iSlider extends iSliderOpt {
     change: (d: number) => any;

src/reactComponents/Slider.tsx

@@ -9,10 +9,10 @@ import {ChangeEvent} from "react";
 import {get_browser} from '../util/get_browser';
 
 export interface iSliderOpt {
-    steps?: number;
-    animate?: boolean;
-    defaultAnimationInterval?: number;
-    value?: number;
+    steps: number;
+    animate: boolean;
+    defaultAnimationInterval: number;
+    value: number;
 }
 
 export interface iSlider extends iSliderOpt{