add test for Tricle::Mailer.send_all - fixes #16
Merge remote-tracking branch 'upstream/master' into send-all

Conflicts:
	spec/unit/mailer_spec.rb
Merge pull request #31 from afeld/send-all

@dblock => add test for Tricle::Mailer.send_all
Merge remote-tracking branch 'upstream/master' into group

Conflicts:
	spec/unit/mailer_spec.rb