v2.1

• Fixed issue where server does not respond with "Last-Modified" header
• Added /overwrite documentation to help

v2.0

• Added /overwrite option to get (to force redownload of existing files)
• Fixed some issues with the /sub option
• Made the /sub option create the destination directory if it doesn't exist (instead of throwing an error)

WARNING: The preexisting behaviour has changed.
To retain the old behaviour (where all files are downloaded even if they already exist) use the /overwrite option.