1.6.1

• Fix flavor text fetching in response to a Gatherer change (thanks @SethMilliken!)

v1.6.0

• Add mana-letter colorization for mana costs using --colourize/--colorize. Uses ANSI codes in the terminal.
• Add --colour as an option for filtering cards by color for people who do not use American orthography.
• requirements-dev.txt is now around to help people figure out what other packages are needed for development.