Add support to LogCatcher for gathering only logs that match a specified logLevel.
Flesh out the sandbox logging resource.
Direct all logging via the logging resource if it exists.
Explain that sandbox is about to be killed when reporting that unknown command was received.
Clean up some details of the new sandbox logging.
Add test for overriding the logging resource.
Also test that no logs are escapting via Twisted when the logging resource is overridden.
Add api paramtere to LoggingResource.log (for use by sub-classes).
LoggingResource .log methods and the api's .log method should always return a deferred for consistency.
Change log level parameter name from lvl to level for readability.
Improve test for recv_limit handling.
If the data is too long, rather just return an empty chunk and throw the dangerously large data away as soon as possible.
Fix typo in log message.
Merge branch 'feature/issue-542-improved-sandbox-logging' into develop
Merge branch 'develop' of github.com:praekelt/vumi into develop