Usage:
ws.rb -u <username> -p <password> [options]
--list-albums, -l : List albums
--get-image-urls, -g <s> : Get list of image urls for a given album url
--get-incremental-image-urls, -i <s> : Get incremental list of image urls for a given album url
--help, -h : Show this message
List albums
ws.rb -u user -p pass -l
Get image links from album url
ws.rb -u user -p pass -g <url>