Create icns files from the command-line

Current versions

Formula history

Dominyk Tiller makeicns: add test
Mike McQuaid Use hash rockets again. (#5177)
Mike McQuaid Use Ruby 1.9+ symbol hash keys in all formulae. (#4942)
Mike McQuaid Rename patches repository to formula-patches.
Dominyk Tiller formulae: migrate patches (part 2)
Dominyk Tiller makeicns: use secure homepage
Nikolaus Wittenstein Add descriptions to all remaining homebrew packages
Jack Nagel makeicns: use checksummed patches
Adam Vandenberg makeicns: patch for 10.9