Homebrew/homebrew-versions — pull request #86 by cwoodcox (2013-03-14 21:49:37+00:00)
Title: GCC 4.7 doesn't install

```
λ brew install gcc47
Error: class "Gcc47" expected but not found in gcc47.rb
Double-check the name of the class in that formula.
Error: No available formula for gcc47
```

#80 brought over gcc47 and didn't change the class name.