[ANNOUNCE] Lav Jain as a new committer for Ambari

[Oleksandr Diachenko]

Hi all,

It is my pleasure to announce that Lav Jain(lavjain) has become a committer
 for Ambari.
He did significant contribution in HAWQ and PXF support and will continue
doing his best.

Congratulations, Lav!

Regards, Alex.