Site search box does not have a label

[Jono M]

For people using screen readers, having a label for every form input is essential as they have no other (easy) way of knowing what the input is for. Currently the site search box does not have an associated label.
A hidden label should be added which contains the search box placeholder text (either "Search users" or "Search" depending on which plugin is used)

Affects latest master

(WCAG Level A)

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/2901

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/2901
Committed: http://gitorious.org/mahara/mahara/commit/f19fd70ad336bfe69f5208e976834f606964bff1
Submitter: Robert Lyon (<email address hidden>)
Branch: master

commit f19fd70ad336bfe69f5208e976834f606964bff1
Author: Jono Mingard <email address hidden>
Date: Mon Jan 13 11:18:35 2014 +1300

Add hidden label to site search box (Bug #1262867)

Add new option to pieforms element, 'hiddenlabel', which adds the class
'accessible-hidden' to the element's label. Used this setting in the
universal search form for both internal and elasticsearch plugins.

Change-Id: Ie9c35a40b5aa818368ee2bd784d9f00d8592a465
Signed-off-by: Jono Mingard <email address hidden>