Update pfs.py

Here is the bugzilla bug record for this change:
https://bugzilla.mozilla.org/show_bug.cgi?id=1062425
speed up the popularity/movers update by running bulk queries (bug 1059964)
Merge pull request #260 from magopian/1059964-lwt-popularity-movers-opti

speed up the popularity/movers update by running bulk queries (bug 1059964)
Upgrading Elasticsearch (bug 1013874)
Merge pull request #253 from jpfeif66/patch-7

Update pfs.py
Extract/compile script.  Today's lucky number is 24488.
Extract/compile script.  Today's lucky number is 26450.
fixing syntax
Commit from Mozilla Verbatim by user petercpg@mail.moztw.org.: 3015 of 3015 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user michael.koehler1@gmx.de.: 3015 of 3015 strings translated (0 fuzzy).
Merge pull request #116 from yohanboniface/bug-1013874-upgrade-elasticsearch

Upgrading Elasticsearch (bug 1013874)
Bump Elasticsearch version (bug 1013874)