Fix bug with mouse hover triggerring on tooltip children

Author: tom-s

Diff for: src/js/index.jsx

@@ -87,7 +87,7 @@ const ReactTooltip = React.createClass({
   componentDidMount() {
     var targetArray = document.querySelectorAll("[data-tip]");
     for(var i = 0; i < targetArray.length; i++) {
-      targetArray[i].addEventListener("mouseover", this.showTooltip, false);
+      targetArray[i].addEventListener("mouseenter", this.showTooltip, false);
       targetArray[i].addEventListener("mousemove", this.updateTooltip, false);
       targetArray[i].addEventListener("mouseleave", this.hideTooltip, false);
     }
@@ -96,7 +96,7 @@ const ReactTooltip = React.createClass({
   componentWillUnmount() {
     var targetArray = document.querySelectorAll("[data-tip]");
     for(var i = 0; i < targetArray.length; i++) {
-      targetArray[i].removeEventListener("mouseover", this.showTooltip);
+      targetArray[i].removeEventListener("mouseenter", this.showTooltip);
       targetArray[i].removeEventListener("mousemove", this.updateTooltip);
       targetArray[i].removeEventListener("mouseleave", this.hideTooltip);
     }