Default protocol implementation to load any view from NIB

LoadableView.swift

protocol LoadableView {
    static func loadViewFromNibName(nibName: String) -> Self
}

extension LoadableView {
    /**
     Default protocol implementation to load a view from nib!
     */
    static func loadViewFromNibName(nibName: String) -> Self {
        let nibViews = NSBundle.mainBundle().loadNibNamed(nibName, owner: nil, options:nil)
        let view = nibViews[0] as! Self
        return view
    }
}