added assets_find_options, extended the assets:each, if/unless_assets tags, added assets:extensions tag
added assets_find_options, extended the assets:each, if/unless_assets tags, added assets:extensions tag

radiant/radiant-clipped-extension,radiant/radiant-clipped-extension,GarPit/radiant-clipped-extension,radiant/radiant-clipped-extension,kbingman/paperclipped,saturnflyer/paperclipped,GarPit/radiant-clipped-extension,radiant/radiant-clipped-extension,kbingman/paperclipped