[IP-CLEARANCE] Phoenix: "Python PhoenixDb"

[Josh Elser]

The Apache Phoenix PMC has completed the IP Clearance to adopt the 
Python-based driver to the Apache Phoenix Query Server called "Python 
PhoenixDB".

http://incubator.apache.org/ip-clearance/phoenix-phoenixdb.html
This is subject to the 72-hr lazy consensus window (2018/03/18 1700GMT). 
Please let me know if there are any concerns.

Thanks!