[Raven] Don't log exceptions twice

[davidwindell]

As was picked up by in the review for #76, exceptions are being logged twice to Sentry which doesn't make any sense.

[Seldaek]

Thanks for confirming this, I wasn't sure how sentry handles this so didn't want to end up ignoring some messages, but if it's duplicating them then that makes no sense. There is a little problem in the fact that the captureException method doesn't take anything else than the exception though, so you can't keep the log record's message and all, you just send the exception and lose the rest. I guess it's better than duplication but it's a bit sad.

I wonder if the if() there shouldn't just be if (isset($record['context']['exception']) && $record['context']['exception'] instanceof \Exception) {? In any case I think we should verify it's a proper exception instance, but also I don't think the log level really matters.

[davidwindell]

@Seldaek thanks for the review, OK so I've done a bit of a clean-upr;

• Removed check for Raven_Client version as v0.1.0 didn't support captureMessage anyway
• We are now sending the formatted message as an extra key, so it appears in Sentry alongside the exception
• The error level is also now retained for the exception :)

if you're happy with these changes, I'll update the tests accordingly.

[Seldaek]

Looks good yes, thanks.

[davidwindell]

Done, I've bumped Raven to 0.5.* too.

[Seldaek]

Thanks