New getters for IconicsDrawable
Hi Mike,
Can you add these new getters for IconicsDrawable.java?
I tried to do a pull request of the file but I do not how to do it. Here is the code to add:

``` java
    /**
     * Returns the icon color
     *
     */
    public int getColor() {
        return mIconColor;
    }

    /**
     * Returns the icon contour color
     *
     */
    public int getContourColor() {
        return mContourColor;
    }

    /**
     * Returns the icon background color
     *
     */
    public int getBackgroundColor() {
        return mBackgroundColor;
    }
```

Thanks
