v1.1.0

Changes:

• Add DG.all_successes to asynchronously perform a set of operations, and either succeed when all operations succeed, or fail with the first failure.

v1.0.0

Changes:

• Remove the Fluent module as the same syntax is available in
  EventMachine 1.0.3.
• Add failure_value to DeferrableGratification::Primitives to fail without
  an exception. Any value may be specified, but the main use is to fail with
  only an error string.