Encrypt and decrypt files and streams

Current version

Formula history

Viktor Szakats ccrypt: https url
Miguel Araújo ccrypt: fix audit --warning
ilovezfs ccrypt: fix audit failure about emacs lisp files
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
Baptiste Fontaine ccrypt: conflict added with ccat
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Dominyk Tiller ccrypt: added test
Jack Nagel ccrypt 1.10