Support Pinned Posts on Site News

[Jeremy Hopkins]

If a news item is "pinned" on the site news it should remain pinned in the news slider. Currently it does not seem to.

I think there would need to be options within the block to:

• Enable site level pinned posts
• Enable course level pinned posts

Thus the settings could be changed depending on the context theh block was being used in.

[Manoj Solanki]

Fix #16. To be tested on 3.3

→ <<cset 3a4da209640b>>