Authentication errors cause sms tool to stack trace

[jasonm23]

Just getting started and testing with the command line tool, sms

I've created the ~/.clickatell file but for one reason or another I'm getting an authentication error, however sms just chokes and throws a stack trace.

I'll have a look into this and patch it myself if possible, should just need a rescue block for auth fail.

The other thing notable is the credentials I'm using are correct (well they're what I use to connect to clickatell.com + the api_id - anyway, just logging the issue, I'll take a look in the morning.

[jasonm23]

FYI Checked the HTTP/API Login via a regular old curl / POST and everything worked, so there's something wrong with the authentication side of the gem.