IGNITE-4103 IgniteDataStreamer doesn't throw exception if cache is destroyed

[Saikat Maitra]

Hi,

I have raised PR[1] for the following jira ticket[2].

Please review and let me know if any changes required.

Regards,

Saikat

[1] https://github.com/apache/ignite/pull/1186

[2] https://issues.apache.org/jira/browse/IGNITE-4103