Added possibility to add attachments to log msgs
Added possibility to add attachments to log msgs

You can now call log_format with an attachment parameter that is a tuple
of ("color", "text")

ohaz/amos-ss15-proj1,ohaz/amos-ss15-proj1,ohaz/amos-ss15-proj1,ohaz/amos-ss15-proj1,ohaz/amos-ss15-proj1,ohaz/amos-ss15-proj1,ohaz/amos-ss15-proj1,ohaz/amos-ss15-proj1