Cache Buster

Simply adds a tag which applies to a cache buster to any asset.

Usage

    <h1> Homepage </h1>
    <img src="http://example.com/some/external/image.jpg<r:cache_buster/>">

Configuration

    # file: :radiant_root/config/initializers/radiant_config.rb
    Radiant.config do |config|
            config['cache_buster.timeout'] = 1.day
    end