Fixed mjolnic/bootstrap-colorpicker#66 UTF Space Character (Alt+0160)

Fixed mjolnic/bootstrap-colorpicker#67 Colorpicker appears out of position when input is in bootstrap modal
Added modal dialog into the docs

The positioning occurs because "container" defaults to false, which results in this.container[0] being evaluate to undefined which will never !== document.body. See reposition: function() { for context.