Added: Airbrake support refs #103
Merge pull request #104 from mallowlabs/id/103

Added: Airbrake support refs #103
message/show with non-existing message id returns status code 302 refs #105
Merge pull request #106 from mallowlabs/id/105

message/show with non-existing message id returns status code 302 refs #105
Added: test arnesses refs #109
Added: order param to message/list api refs #109
Merge pull request #110 from mallowlabs/id/109

Added: order param to message/list api refs #109
Added: url to Attachment#to_json refs #108
Merge pull request #111 from mallowlabs/id/108

Added: url to Attachment#to_json refs #108