simplify looping construct

[jmjpro]

The looping construct was non-intuitive and I only figured it with a little trial and error and reading your code. To loop through all the colors in your color example I was only successful with the following:

var colors;
for( var i in color.symbols() ) {
    var colorInstance = color.symbols()[i];
    colors += colorInstance.name + ':' + colorInstance.de + '<br/>';
}

Intuitively I thought the looping would be like this:

var colors;
for( var colorInstance in color ) {
    colors += colorInstance.name + ':' + colorInstance.de + '<br/>';
}

My knowledge of javascript is not sufficient to determine whether or not it's possible for enums.js to support that looping construct.