calebthompson/title — pull request #2 by calebthompson (2014-02-13 19:15:34+00:00)
Title: Find :default key in lookup path to use as default

If a key isn't found, before using application title or guessing the title,
look for `:default` in the lookup path.

For example, in `users#show`, `titles.users.default` would be used if
`titles.users.show` were not present.