To uninstall ruby-bluefeather just follow these instructions.
sudo apt-get remove ruby-bluefeather
This will remove just the ruby-bluefeather package itself.
sudo apt-get remove --auto-remove ruby-bluefeather
This will remove the ruby-bluefeather package and any other dependant packages which are no longer needed.
If you also want to delete your local/config files for ruby-bluefeather then this will work.
sudo apt-get purge ruby-bluefeather
Or similarly, like this ruby-bluefeather
sudo apt-get purge --auto-remove ruby-bluefeather
|Maintainer||Debian Ruby Extras Maintainers <email@example.com>|
|Description||Extend Markdown Converter written in Ruby|