Morse code learning tool released under GPL

Current version

aldo requires the following formula to be installed:
libao 1.2.2 Cross-platform Audio Library

Recent formula history

Viktor Szakats aldo: use secure url (redirected to cleartext)
Viktor Szakats aldo: follow url, use https in comment
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Adam Vandenberg aldo: fix use of iterator

Formula code at GitHub