Comment 1 for bug 1421033

Reviewed: https://reviews.mahara.org/4269
Committed: http://gitorious.org/mahara/mahara/commit/e985e680d038334d4cc2375f5f406969dd9271ed
Submitter: Yuliya Bozhko (<email address hidden>)
Branch: master

commit e985e680d038334d4cc2375f5f406969dd9271ed
Author: Son Nguyen <email address hidden>
Date: Thu Feb 12 12:21:23 2015 +1300

Improve the indexing for elasticsearch plugin. Bug 1421033

Time of indexing reduces from 2 hours to 23m on my dev machine after
applying this patch

Change-Id: Ia827a0c3945509e388da516109397a3db6e29eca
Signed-off-by: Son Nguyen <email address hidden>