I can confirm that the OS X uninstall instructions on the website do
work.
http://adeona.cs.washington.edu/osxremoveguide.html
@Eryx 'sudo' is a unix command that is used to allow a regular user to
execute programs that normally only the 'root' (admin) user could
execute.
So when you see a command like:
'sudo launchctl stop edu.washington.cs.adeona'
simply copy and paste it EXACTLY as you see it into a terminal
window. The first time you execute a command with sudo it will ask
for your OS X user login password. sudo will remember your password
for a few minutes so the subsequent sudo commands you enter should not
prompt you for the password again.
CAUTION : Be very careful how you copy and paste the uninstall
commands and double check that they are correct. If you type them
incorrectly you risk deleting MUCH MORE than you want, potentially
rendering your machine inoperable. Use caution and you should be ok.
This all assumes that the user you are logged into OS X as is an admin
user. By default the first user that was created on your OS X machine
has admin privileges.