Update "Pick a ticket" site section

[Raul Kripalani]

Could someone please update

    https://ignite.apache.org/community/contribute.html#pick-ticket

and remove this item from the list:

    Streaming from ActiveMQ, IGNITE-534

It's already been merged.

Thanks,

*Raúl Kripalani*
Apache Camel PMC Member & Committer | Enterprise Architect, Open Source
Integration specialist
http://about.me/raulkripalani | http://www.linkedin.com/in/raulkripalani
http://blog.raulkr.net | twitter: @raulvk