+++ /dev/null
-# A generalization of PGError, and whatever MySQL and the other
-# databases might eventually use.
-class DatabaseError < StandardError
-end
-
-
-# Perhaps surprisingly, used to indicate that an account name is
-# invalid.
-class InvalidAccountError < StandardError
-end
-
-
-# Used to indicate that an account does not exist on the filesystem.
-class NonexistentAccountError < StandardError
-end
-
-
-# Used to indicate that a domain does not exist on the filesystem.
-class NonexistentDomainError < StandardError
-end