feat: support tooltipPrefixcls

src/Handle.jsx

@@ -25,6 +25,7 @@ export default class Handle extends React.Component {
   render() {
     const {
       prefixCls,
+      tooltipPrefixCls,
       className,
       tipTransitionName,
       tipFormatter,
@@ -51,7 +52,7 @@ export default class Handle extends React.Component {
     const isTooltipVisible = dragging || this.state.isTooltipVisible;
     return (
       <Tooltip
-        prefixCls={`${prefixCls}-tooltip`}
+        prefixCls={tooltipPrefixCls || `${prefixCls}-tooltip`}
         placement="top"
         visible={isTooltipVisible}
         overlay={<span>{tipFormatter(value)}</span>}
@@ -66,6 +67,7 @@ export default class Handle extends React.Component {
 
 Handle.propTypes = {
   prefixCls: React.PropTypes.string,
+  tooltipPrefixCls: React.PropTypes.string,
   className: React.PropTypes.string,
   vertical: React.PropTypes.bool,
   offset: React.PropTypes.number,

src/Slider.jsx

@@ -410,6 +410,7 @@ class Slider extends React.Component {
     const {
         className,
         prefixCls,
+        tooltipPrefixCls,
         disabled,
         vertical,
         dots,
@@ -440,6 +441,7 @@ class Slider extends React.Component {
 
     const commonHandleProps = {
       prefixCls,
+      tooltipPrefixCls,
       noTip: isNoTip,
       tipTransitionName,
       tipFormatter,
@@ -515,6 +517,7 @@ Slider.propTypes = {
   included: React.PropTypes.bool,
   className: React.PropTypes.string,
   prefixCls: React.PropTypes.string,
+  tooltipPrefixCls: React.PropTypes.string,
   disabled: React.PropTypes.bool,
   children: React.PropTypes.any,
   onBeforeChange: React.PropTypes.func,