[2.0.1] Observable.addEvents does not add properties to the events object

[Animal]

The code does not handle being passed multiple string event names as parameters.

The current code is:

    addEvents : function(o){
        if(!this.events){
            this.events = {};
        }
        if(typeof o == 'string'){
            for(var i = 0, a = arguments, v; v = a[i]; i++){
                if(!this.events[a[i]]){
                    o[a[i]] = true;
                }
            }
        }else{
            Ext.applyIf(this.events, o);
        }
    },

It should be

    addEvents : function(o){
        if(!this.events){
            this.events = {};
        }
        if(typeof o == 'string'){
            for(var i = 0, a = arguments, v = o; v = a[i]; i++){
                if(!this.events[v]){
                    this.events[v] = true;
                }
            }
        }else{
            Ext.applyIf(this.events, o);
        }
    },

[Condor]

This has been reported before.