Merge pull request #153 from tiraeth/fix-hide-hover

Fixed hideHover=auto for line/area chart

lib/morris.line.coffee

@@ -76,7 +76,7 @@ class Morris.Line extends Morris.Grid
   # @private
   onHoverOut: =>
     if @options.hideHover is 'auto'
-      @displayHoverForIndex(null)
+      @displayHoverForRow(null)
 
   # display a hover popup over the given row
   #

morris.js

@@ -642,7 +642,7 @@
 
     Line.prototype.onHoverOut = function() {
       if (this.options.hideHover === 'auto') {
-        return this.displayHoverForIndex(null);
+        return this.displayHoverForRow(null);
       }
     };