[twitter] Catch rate limit errors in JSON responses

[marcog]

12:25 < marcog> tibid: http://twitter.com/#!/AI_AGW/status/29640123173
12:25 < tibid> marcog: Huh?
12:25 < marcog> tibid: tweet 29640123173
12:25 < tibid> marcog: What?
12:26 < marcog> tibid: latest tweet from marcog
12:26 < tibid> marcog: I can only see the Fail Whale

If the last one reports fail whale, why don't the first two?

[marcog (marco-gallotta)]

Okay, so it seems it shouldn't be reporting the fail whale at all. What's up?

12:43 <&marcog> tibid: get http://twitter.com/#!/AI_AGW/status/29640123173
12:43 < tibid> marcog: 200 OK text/html; charset=utf-8
12:44 <&marcog> tibid: latest tweet from AI_AGW
12:44 < tibid> marcog: I can only see the Fail Whale

[Stefano Rivera (stefanor)]

OK, this is actually twitter's rate limiting. We should catch this.

{"error":"Rate limit exceeded. Clients may not make more than 150 requests per hour.","request":"\/statuses\/show\/29640123173.json"}