Add a "Loading" indicator on the timeline page

[Kristina Hoeppner]

Mahara 18.10RC1

When a page has lots of content, in particular some that needs fetching from other sources such as Open Badges, the timeline view takes a very long time (in my case up to 20 seconds) to load without any indicator that anything is happening on the page.

It would be good to have a "Loading" indicator on the page so people know that Mahara is processing the request.

For 19.04 we will expand that a bit more in bug #1796587

[Mahara Bot (dev-mahara)]

Patch for "master" branch: https://reviews.mahara.org/9199

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/9199
Committed: https://git.mahara.org/mahara/mahara/commit/c1ffd7070a8e88b5344bd8269921ccc35945972c
Submitter: Cecilia Vela Gurovic (<email address hidden>)
Branch: master

commit c1ffd7070a8e88b5344bd8269921ccc35945972c
Author: Robert Lyon <email address hidden>
Date: Mon Oct 8 08:31:45 2018 +1300

Bug 1796588: Adding a 'loading' message for timeline

In case there are a lot of versions and/or versions have slow loading
blocks

behatnotneeded

Change-Id: Idc7f1eeca76f10a22a76c11a5e2e22bfd82f0858
Signed-off-by: Robert Lyon <email address hidden>

[Mahara Bot (dev-mahara)]

Patch for "18.10_STABLE" branch: https://reviews.mahara.org/9203

[Mahara Bot (dev-mahara)]

Reviewed: https://reviews.mahara.org/9203
Committed: https://git.mahara.org/mahara/mahara/commit/5bd3a324921371ec8e57c2ccf6870d172466944d
Submitter: Cecilia Vela Gurovic (<email address hidden>)
Branch: 18.10_STABLE

commit 5bd3a324921371ec8e57c2ccf6870d172466944d
Author: Robert Lyon <email address hidden>
Date: Mon Oct 8 08:31:45 2018 +1300

Bug 1796588: Adding a 'loading' message for timeline

In case there are a lot of versions and/or versions have slow loading
blocks

behatnotneeded

Change-Id: Idc7f1eeca76f10a22a76c11a5e2e22bfd82f0858
Signed-off-by: Robert Lyon <email address hidden>
(cherry picked from commit c1ffd7070a8e88b5344bd8269921ccc35945972c)