zilkey/auto_tagger — pull request #29 by elliterate (2012-08-29 22:16:21+00:00)
Title: Only set explicitly defined Capistrano variables.

Setting lookups use `Hash#fetch`, which will let you return a sensible
default only when the key doesn't exist. Previously, all settings were
being set to at least `nil`, regardless of whether the user had set a
Capistrano variable, which prevented any defaults from being applied.

This resolves #27.