Make 'strftimedateshort' lang string actually have short month name

[Robert Lyon]

Currently it is only used in reports overview page and there it would be fine/better just to use 'strftimedate' lang string

Currently the 'strftimedateshort' is like '05 November' but it would be more useful to be '5 Nov 2017' so that the 'strftimedateshort' complements the 'strftimedate', which is like '5 November 2017'

This would make it useful to use the long version on a page like Plan task list and use the short version on the plan block

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/9279

[Steven (stevens-q)]

Environment tested: Master
Browser tested: Chrome

Preconditions:

Test Steps:
1. Log in as site admin
2. Browse to Admin menu > Reports
3. Configure report for Overview to display

Expected result: In the over view section of the repot page, ensure that the dates displayed on page include a year (ie. 1 November 2018 - users section of the Overview)

Actual result: As expected

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/9279
Committed: https://git.mahara.org/mahara/mahara/commit/81e4dcd384da5942409a8e2e6acd40ba50d4543b
Submitter: Cecilia Vela Gurovic (<email address hidden>)
Branch: master

commit 81e4dcd384da5942409a8e2e6acd40ba50d4543b
Author: Robert Lyon <email address hidden>
Date: Thu Nov 1 10:01:41 2018 +1300

Bug 1800917: Alter 'strftimedateshort' date to match the long version

behatnotneeded

Change-Id: I1a5417ab6730d01d7a22828ff07d84ddedf4d212
Signed-off-by: Robert Lyon <email address hidden>