Warnings with elasticsearch and php 7

[Robert Lyon]

There are a bunch or warning with php 7 and elasticsearch

[Robert Lyon (robertl-9)]

In case you need to set up elasticsearch for testing

On ubuntu:

wget https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-1.7.3.deb
sudo dpkg -i elasticsearch-1.7.3.deb
sudo /bin/systemctl daemon-reload
sudo /bin/systemctl enable elasticsearch.service

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/7360
Committed: https://git.mahara.org/mahara/mahara/commit/4485d540ce300155d8928e2b6578e93615a50f1b
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit 4485d540ce300155d8928e2b6578e93615a50f1b
Author: Robert Lyon <email address hidden>
Date: Thu Dec 22 18:20:29 2016 +1300

Bug 1656731: Fixing issues for elasticsearch

behatnotneeded

Change-Id: I6dac5a09617dd61ca84a9e47dbc37e0c3ee60b20
Signed-off-by: Robert Lyon <email address hidden>