Click on Bar and Line graph

HI,

I've made minor changes to have a click option handler in Line and Bar graph.
We are using morris.js and the click handler is important to us to go to details of a specific plotted data clicked on the graph.

sample use case:

Morris.Bar( 
  // options go here
 click: function( plotInfo ){
      for (var s in plotInfo) alert( s + "=" + plotInfo[ s ]);
 }
};