Update rack-ssl dependency to 1.3.4
Update thor dependency to 0.19.1
Update rake dependency to 10.2.1
Update rspec-rails dependency to 2.14.2
Update rspec-mocks dependency to 2.14.6
Update rspec-expectations dependency to 2.14.5
Update rspec-core dependency to 2.14.8
Correctly highlight the current letter on subsequent pages
Save all versions of a formula

Homebrew supports multiple specs (`stable`, `devel` and `head`) for
each formula.

See #22
Improve error messages for import failures
Move latest formula change down
Make use of Formula#update_metadata in Repository#recover_deleted_formulae
Ignore exceptions in eval'd old Homebrew code