Add the install and uninstall commands. Could work for upgrade/clean too not sure yet.

Edit your formula /usr/local/Library/Formula/brew-gem.rb  to point at this branch:
```ruby
require 'formula'

class BrewGem < Formula
  homepage 'https://github.com/sportngin/brew-gem'
  url 'https://github.com/sportngin/brew-gem/archive/install-uninstall.tar.gz'

  def install
    bin.install 'bin/brew-gem'
  end
end

```

This should all work:

```
#run brew upgrade
brew upgrade brew-gem
brew gem install opsicle
brew gem uninstall opsicle
```